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Finding the Fourth Proportional to 76,149.34, 114,328.83 and 38,734.73

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Solution

The fourth proportional to 76,149.34, 114,328.83 and 38,734.73 is: 58,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,149.34 : 114,328.83 = 38,734.73 : x
  2. Step 2: Convert to fraction form
    76,149.34/114,328.83 = 38,734.73/x
  3. Step 3: Cross multiply
    76,149.34x = 114,328.83 × 38,734.73
  4. Step 4: Simplify right side
    76,149.34x = 4,428,497,006.71
  5. Step 5: Solve for x
    x = 4,428,497,006.71/76,149.34
  6. Step 6: Final answer
    x = 58,155.42

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1.5x scale

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.