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Finding the Fourth Proportional to 92,766.72, 127,967.40 and 58,712.88

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Solution

The fourth proportional to 92,766.72, 127,967.40 and 58,712.88 is: 80,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,766.72 : 127,967.40 = 58,712.88 : x
  2. Step 2: Convert to fraction form
    92,766.72/127,967.40 = 58,712.88/x
  3. Step 3: Cross multiply
    92,766.72x = 127,967.40 × 58,712.88
  4. Step 4: Simplify right side
    92,766.72x = 7,513,334,600.11
  5. Step 5: Solve for x
    x = 7,513,334,600.11/92,766.72
  6. Step 6: Final answer
    x = 80,991.70

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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.