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Finding the Fourth Proportional to 92,017.56, 126,988.92 and 51,737.88

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Solution

The fourth proportional to 92,017.56, 126,988.92 and 51,737.88 is: 71,400.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,017.56 : 126,988.92 = 51,737.88 : x
  2. Step 2: Convert to fraction form
    92,017.56/126,988.92 = 51,737.88/x
  3. Step 3: Cross multiply
    92,017.56x = 126,988.92 × 51,737.88
  4. Step 4: Simplify right side
    92,017.56x = 6,570,137,504.29
  5. Step 5: Solve for x
    x = 6,570,137,504.29/92,017.56
  6. Step 6: Final answer
    x = 71,400.91

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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.