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Finding the Fourth Proportional to 60,932.70, 84,123.45 and 38,290.86

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Solution

The fourth proportional to 60,932.70, 84,123.45 and 38,290.86 is: 52,864.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,932.70 : 84,123.45 = 38,290.86 : x
  2. Step 2: Convert to fraction form
    60,932.70/84,123.45 = 38,290.86/x
  3. Step 3: Cross multiply
    60,932.70x = 84,123.45 × 38,290.86
  4. Step 4: Simplify right side
    60,932.70x = 3,221,159,246.67
  5. Step 5: Solve for x
    x = 3,221,159,246.67/60,932.70
  6. Step 6: Final answer
    x = 52,864.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.