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Finding the Fourth Proportional to 605,540.73, 908,306.54 and 156,223.40

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Solution

The fourth proportional to 605,540.73, 908,306.54 and 156,223.40 is: 234,333.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,540.73 : 908,306.54 = 156,223.40 : x
  2. Step 2: Convert to fraction form
    605,540.73/908,306.54 = 156,223.40/x
  3. Step 3: Cross multiply
    605,540.73x = 908,306.54 × 156,223.40
  4. Step 4: Simplify right side
    605,540.73x = 141,898,730,598.39
  5. Step 5: Solve for x
    x = 141,898,730,598.39/605,540.73
  6. Step 6: Final answer
    x = 234,333.92

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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.