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Finding the Fourth Proportional to 125,567.94, 173,292.22 and 68,979.90

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Solution

The fourth proportional to 125,567.94, 173,292.22 and 68,979.90 is: 95,196.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,567.94 : 173,292.22 = 68,979.90 : x
  2. Step 2: Convert to fraction form
    125,567.94/173,292.22 = 68,979.90/x
  3. Step 3: Cross multiply
    125,567.94x = 173,292.22 × 68,979.90
  4. Step 4: Simplify right side
    125,567.94x = 11,953,680,006.38
  5. Step 5: Solve for x
    x = 11,953,680,006.38/125,567.94
  6. Step 6: Final answer
    x = 95,196.91

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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.