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Finding the Fourth Proportional to 76,447.76, 114,612.12 and 36,446.16

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Solution

The fourth proportional to 76,447.76, 114,612.12 and 36,446.16 is: 54,640.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,447.76 : 114,612.12 = 36,446.16 : x
  2. Step 2: Convert to fraction form
    76,447.76/114,612.12 = 36,446.16/x
  3. Step 3: Cross multiply
    76,447.76x = 114,612.12 × 36,446.16
  4. Step 4: Simplify right side
    76,447.76x = 4,177,171,663.46
  5. Step 5: Solve for x
    x = 4,177,171,663.46/76,447.76
  6. Step 6: Final answer
    x = 54,640.86

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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.