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Finding the Fourth Proportional to 186,119.34, 279,042.90 and 59,687.61

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Solution

The fourth proportional to 186,119.34, 279,042.90 and 59,687.61 is: 89,487.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,119.34 : 279,042.90 = 59,687.61 : x
  2. Step 2: Convert to fraction form
    186,119.34/279,042.90 = 59,687.61/x
  3. Step 3: Cross multiply
    186,119.34x = 279,042.90 × 59,687.61
  4. Step 4: Simplify right side
    186,119.34x = 16,655,403,788.47
  5. Step 5: Solve for x
    x = 16,655,403,788.47/186,119.34
  6. Step 6: Final answer
    x = 89,487.77

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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.