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Finding the Fourth Proportional to 71,446.60, 107,148.01 and 49,401.64

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Solution

The fourth proportional to 71,446.60, 107,148.01 and 49,401.64 is: 74,087.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,446.60 : 107,148.01 = 49,401.64 : x
  2. Step 2: Convert to fraction form
    71,446.60/107,148.01 = 49,401.64/x
  3. Step 3: Cross multiply
    71,446.60x = 107,148.01 × 49,401.64
  4. Step 4: Simplify right side
    71,446.60x = 5,293,287,416.74
  5. Step 5: Solve for x
    x = 5,293,287,416.74/71,446.60
  6. Step 6: Final answer
    x = 74,087.32

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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.