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Finding the Fourth Proportional to 92,397.76, 127,508.96 and 49,956.64

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Solution

The fourth proportional to 92,397.76, 127,508.96 and 49,956.64 is: 68,940.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,397.76 : 127,508.96 = 49,956.64 : x
  2. Step 2: Convert to fraction form
    92,397.76/127,508.96 = 49,956.64/x
  3. Step 3: Cross multiply
    92,397.76x = 127,508.96 × 49,956.64
  4. Step 4: Simplify right side
    92,397.76x = 6,369,919,211.49
  5. Step 5: Solve for x
    x = 6,369,919,211.49/92,397.76
  6. Step 6: Final answer
    x = 68,940.19

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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.