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Finding the Fourth Proportional to 94,693.87, 142,016.50 and 28,115.92

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Solution

The fourth proportional to 94,693.87, 142,016.50 and 28,115.92 is: 42,166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,693.87 : 142,016.50 = 28,115.92 : x
  2. Step 2: Convert to fraction form
    94,693.87/142,016.50 = 28,115.92/x
  3. Step 3: Cross multiply
    94,693.87x = 142,016.50 × 28,115.92
  4. Step 4: Simplify right side
    94,693.87x = 3,992,924,552.68
  5. Step 5: Solve for x
    x = 3,992,924,552.68/94,693.87
  6. Step 6: Final answer
    x = 42,166.66

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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.