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Finding the Fourth Proportional to 125,859.52, 173,689.38 and 68,502.60

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Solution

The fourth proportional to 125,859.52, 173,689.38 and 68,502.60 is: 94,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,859.52 : 173,689.38 = 68,502.60 : x
  2. Step 2: Convert to fraction form
    125,859.52/173,689.38 = 68,502.60/x
  3. Step 3: Cross multiply
    125,859.52x = 173,689.38 × 68,502.60
  4. Step 4: Simplify right side
    125,859.52x = 11,898,174,122.39
  5. Step 5: Solve for x
    x = 11,898,174,122.39/125,859.52
  6. Step 6: Final answer
    x = 94,535.35

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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.