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Finding the Fourth Proportional to 186,049.12, 278,752.71 and 101,869.87

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Solution

The fourth proportional to 186,049.12, 278,752.71 and 101,869.87 is: 152,629.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,049.12 : 278,752.71 = 101,869.87 : x
  2. Step 2: Convert to fraction form
    186,049.12/278,752.71 = 101,869.87/x
  3. Step 3: Cross multiply
    186,049.12x = 278,752.71 × 101,869.87
  4. Step 4: Simplify right side
    186,049.12x = 28,396,502,329.85
  5. Step 5: Solve for x
    x = 28,396,502,329.85/186,049.12
  6. Step 6: Final answer
    x = 152,629.06

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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.