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Finding the Fourth Proportional to 92,712.78, 127,942.16 and 52,425.27

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Solution

The fourth proportional to 92,712.78, 127,942.16 and 52,425.27 is: 72,346.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,712.78 : 127,942.16 = 52,425.27 : x
  2. Step 2: Convert to fraction form
    92,712.78/127,942.16 = 52,425.27/x
  3. Step 3: Cross multiply
    92,712.78x = 127,942.16 × 52,425.27
  4. Step 4: Simplify right side
    92,712.78x = 6,707,402,020.26
  5. Step 5: Solve for x
    x = 6,707,402,020.26/92,712.78
  6. Step 6: Final answer
    x = 72,346.03

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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.