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Finding the Fourth Proportional to 151,770.71, 209,248.87 and 124,446.11

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Solution

The fourth proportional to 151,770.71, 209,248.87 and 124,446.11 is: 171,575.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,770.71 : 209,248.87 = 124,446.11 : x
  2. Step 2: Convert to fraction form
    151,770.71/209,248.87 = 124,446.11/x
  3. Step 3: Cross multiply
    151,770.71x = 209,248.87 × 124,446.11
  4. Step 4: Simplify right side
    151,770.71x = 26,040,208,105.40
  5. Step 5: Solve for x
    x = 26,040,208,105.40/151,770.71
  6. Step 6: Final answer
    x = 171,575.98

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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.