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Finding the Fourth Proportional to 76,402.67, 114,627.47 and 36,472.61

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Solution

The fourth proportional to 76,402.67, 114,627.47 and 36,472.61 is: 54,720.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,402.67 : 114,627.47 = 36,472.61 : x
  2. Step 2: Convert to fraction form
    76,402.67/114,627.47 = 36,472.61/x
  3. Step 3: Cross multiply
    76,402.67x = 114,627.47 × 36,472.61
  4. Step 4: Simplify right side
    76,402.67x = 4,180,763,008.60
  5. Step 5: Solve for x
    x = 4,180,763,008.60/76,402.67
  6. Step 6: Final answer
    x = 54,720.12

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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.