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Finding the Fourth Proportional to 76,034.92, 104,930.34 and 42,500.20

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Solution

The fourth proportional to 76,034.92, 104,930.34 and 42,500.20 is: 58,651.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,034.92 : 104,930.34 = 42,500.20 : x
  2. Step 2: Convert to fraction form
    76,034.92/104,930.34 = 42,500.20/x
  3. Step 3: Cross multiply
    76,034.92x = 104,930.34 × 42,500.20
  4. Step 4: Simplify right side
    76,034.92x = 4,459,560,436.07
  5. Step 5: Solve for x
    x = 4,459,560,436.07/76,034.92
  6. Step 6: Final answer
    x = 58,651.48

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1.5x scale

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.