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Finding the Fourth Proportional to 86,565,861,039.40, 129,848,791,559.10 and 86,565,861,039.40

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Solution

The fourth proportional to 86,565,861,039.40, 129,848,791,559.10 and 86,565,861,039.40 is: 129,848,791,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,565,861,039.40 : 129,848,791,559.10 = 86,565,861,039.40 : x
  2. Step 2: Convert to fraction form
    86,565,861,039.40/129,848,791,559.10 = 86,565,861,039.40/x
  3. Step 3: Cross multiply
    86,565,861,039.40x = 129,848,791,559.10 × 86,565,861,039.40
  4. Step 4: Simplify right side
    86,565,861,039.40x = 11,240,472,446,239,066,030,080
  5. Step 5: Solve for x
    x = 11,240,472,446,239,066,030,080/86,565,861,039.40
  6. Step 6: Final answer
    x = 129,848,791,559.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.