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Finding the Fourth Proportional to 89,732.50, 123,830.86 and 52,028.62

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Solution

The fourth proportional to 89,732.50, 123,830.86 and 52,028.62 is: 71,799.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,732.50 : 123,830.86 = 52,028.62 : x
  2. Step 2: Convert to fraction form
    89,732.50/123,830.86 = 52,028.62/x
  3. Step 3: Cross multiply
    89,732.50x = 123,830.86 × 52,028.62
  4. Step 4: Simplify right side
    89,732.50x = 6,442,748,319.56
  5. Step 5: Solve for x
    x = 6,442,748,319.56/89,732.50
  6. Step 6: Final answer
    x = 71,799.50

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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.