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Finding the Fourth Proportional to 136,892.42, 205,337.78 and 55,839.13

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Solution

The fourth proportional to 136,892.42, 205,337.78 and 55,839.13 is: 83,758.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,892.42 : 205,337.78 = 55,839.13 : x
  2. Step 2: Convert to fraction form
    136,892.42/205,337.78 = 55,839.13/x
  3. Step 3: Cross multiply
    136,892.42x = 205,337.78 × 55,839.13
  4. Step 4: Simplify right side
    136,892.42x = 11,465,882,991.33
  5. Step 5: Solve for x
    x = 11,465,882,991.33/136,892.42
  6. Step 6: Final answer
    x = 83,758.35

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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.