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Finding the Fourth Proportional to 47,088,121.40, 66,074,535.40 and 47,088,121.40

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Solution

The fourth proportional to 47,088,121.40, 66,074,535.40 and 47,088,121.40 is: 66,074,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,088,121.40 : 66,074,535.40 = 47,088,121.40 : x
  2. Step 2: Convert to fraction form
    47,088,121.40/66,074,535.40 = 47,088,121.40/x
  3. Step 3: Cross multiply
    47,088,121.40x = 66,074,535.40 × 47,088,121.40
  4. Step 4: Simplify right side
    47,088,121.40x = 3,111,325,744,363,797.50
  5. Step 5: Solve for x
    x = 3,111,325,744,363,797.50/47,088,121.40
  6. Step 6: Final answer
    x = 66,074,535.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.