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Finding the Fourth Proportional to 93,778, 140,701.56 and 49,402.96

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Solution

The fourth proportional to 93,778, 140,701.56 and 49,402.96 is: 74,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,778 : 140,701.56 = 49,402.96 : x
  2. Step 2: Convert to fraction form
    93,778/140,701.56 = 49,402.96/x
  3. Step 3: Cross multiply
    93,778x = 140,701.56 × 49,402.96
  4. Step 4: Simplify right side
    93,778x = 6,951,073,540.62
  5. Step 5: Solve for x
    x = 6,951,073,540.62/93,778
  6. Step 6: Final answer
    x = 74,122.65

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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.