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Finding the Fourth Proportional to 67,340.54, 92,895.80 and 51,397.31

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Solution

The fourth proportional to 67,340.54, 92,895.80 and 51,397.31 is: 70,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,340.54 : 92,895.80 = 51,397.31 : x
  2. Step 2: Convert to fraction form
    67,340.54/92,895.80 = 51,397.31/x
  3. Step 3: Cross multiply
    67,340.54x = 92,895.80 × 51,397.31
  4. Step 4: Simplify right side
    67,340.54x = 4,774,593,508.83
  5. Step 5: Solve for x
    x = 4,774,593,508.83/67,340.54
  6. Step 6: Final answer
    x = 70,902.22

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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.