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Finding the Fourth Proportional to 186,119.60, 279,043.28 and 59,687.87

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Solution

The fourth proportional to 186,119.60, 279,043.28 and 59,687.87 is: 89,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,119.60 : 279,043.28 = 59,687.87 : x
  2. Step 2: Convert to fraction form
    186,119.60/279,043.28 = 59,687.87/x
  3. Step 3: Cross multiply
    186,119.60x = 279,043.28 × 59,687.87
  4. Step 4: Simplify right side
    186,119.60x = 16,655,499,021.01
  5. Step 5: Solve for x
    x = 16,655,499,021.01/186,119.60
  6. Step 6: Final answer
    x = 89,488.15

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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.