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Finding the Fourth Proportional to 123,391.97, 185,164.11 and 48,498.98

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Solution

The fourth proportional to 123,391.97, 185,164.11 and 48,498.98 is: 72,778.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,391.97 : 185,164.11 = 48,498.98 : x
  2. Step 2: Convert to fraction form
    123,391.97/185,164.11 = 48,498.98/x
  3. Step 3: Cross multiply
    123,391.97x = 185,164.11 × 48,498.98
  4. Step 4: Simplify right side
    123,391.97x = 8,980,270,467.61
  5. Step 5: Solve for x
    x = 8,980,270,467.61/123,391.97
  6. Step 6: Final answer
    x = 72,778.40

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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.