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Finding the Fourth Proportional to 186,502.10, 279,753.15 and 161,132.90

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Solution

The fourth proportional to 186,502.10, 279,753.15 and 161,132.90 is: 241,699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,502.10 : 279,753.15 = 161,132.90 : x
  2. Step 2: Convert to fraction form
    186,502.10/279,753.15 = 161,132.90/x
  3. Step 3: Cross multiply
    186,502.10x = 279,753.15 × 161,132.90
  4. Step 4: Simplify right side
    186,502.10x = 45,077,436,343.64
  5. Step 5: Solve for x
    x = 45,077,436,343.64/186,502.10
  6. Step 6: Final answer
    x = 241,699.35

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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.