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Finding the Fourth Proportional to 92,695.30, 127,918.17 and 52,407.72

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Solution

The fourth proportional to 92,695.30, 127,918.17 and 52,407.72 is: 72,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,695.30 : 127,918.17 = 52,407.72 : x
  2. Step 2: Convert to fraction form
    92,695.30/127,918.17 = 52,407.72/x
  3. Step 3: Cross multiply
    92,695.30x = 127,918.17 × 52,407.72
  4. Step 4: Simplify right side
    92,695.30x = 6,703,899,636.27
  5. Step 5: Solve for x
    x = 6,703,899,636.27/92,695.30
  6. Step 6: Final answer
    x = 72,321.90

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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.