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Finding the Fourth Proportional to 186,593.10, 279,926.10 and 74,254.20

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Solution

The fourth proportional to 186,593.10, 279,926.10 and 74,254.20 is: 111,395.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,593.10 : 279,926.10 = 74,254.20 : x
  2. Step 2: Convert to fraction form
    186,593.10/279,926.10 = 74,254.20/x
  3. Step 3: Cross multiply
    186,593.10x = 279,926.10 × 74,254.20
  4. Step 4: Simplify right side
    186,593.10x = 20,785,688,614.62
  5. Step 5: Solve for x
    x = 20,785,688,614.62/186,593.10
  6. Step 6: Final answer
    x = 111,395.81

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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.