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Finding the Fourth Proportional to 186,502.36, 279,781.32 and 66,549.96

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Solution

The fourth proportional to 186,502.36, 279,781.32 and 66,549.96 is: 99,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,502.36 : 279,781.32 = 66,549.96 : x
  2. Step 2: Convert to fraction form
    186,502.36/279,781.32 = 66,549.96/x
  3. Step 3: Cross multiply
    186,502.36x = 279,781.32 × 66,549.96
  4. Step 4: Simplify right side
    186,502.36x = 18,619,435,654.75
  5. Step 5: Solve for x
    x = 18,619,435,654.75/186,502.36
  6. Step 6: Final answer
    x = 99,834.85

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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.