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Finding the Fourth Proportional to 124,442.98, 171,731.49 and 67,854.36

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Solution

The fourth proportional to 124,442.98, 171,731.49 and 67,854.36 is: 93,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,442.98 : 171,731.49 = 67,854.36 : x
  2. Step 2: Convert to fraction form
    124,442.98/171,731.49 = 67,854.36/x
  3. Step 3: Cross multiply
    124,442.98x = 171,731.49 × 67,854.36
  4. Step 4: Simplify right side
    124,442.98x = 11,652,730,345.80
  5. Step 5: Solve for x
    x = 11,652,730,345.80/124,442.98
  6. Step 6: Final answer
    x = 93,639.11

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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.