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Finding the Fourth Proportional to 55,167.40, 82,751.10 and 49,043.80

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Solution

The fourth proportional to 55,167.40, 82,751.10 and 49,043.80 is: 73,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,167.40 : 82,751.10 = 49,043.80 : x
  2. Step 2: Convert to fraction form
    55,167.40/82,751.10 = 49,043.80/x
  3. Step 3: Cross multiply
    55,167.40x = 82,751.10 × 49,043.80
  4. Step 4: Simplify right side
    55,167.40x = 4,058,428,398.18
  5. Step 5: Solve for x
    x = 4,058,428,398.18/55,167.40
  6. Step 6: Final answer
    x = 73,565.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.