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Finding the Fourth Proportional to 73,376.64, 101,258.88 and 39,842.88

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Solution

The fourth proportional to 73,376.64, 101,258.88 and 39,842.88 is: 54,982.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,376.64 : 101,258.88 = 39,842.88 : x
  2. Step 2: Convert to fraction form
    73,376.64/101,258.88 = 39,842.88/x
  3. Step 3: Cross multiply
    73,376.64x = 101,258.88 × 39,842.88
  4. Step 4: Simplify right side
    73,376.64x = 4,034,445,404.77
  5. Step 5: Solve for x
    x = 4,034,445,404.77/73,376.64
  6. Step 6: Final answer
    x = 54,982.69

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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.