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Finding the Fourth Proportional to 125,599.71, 173,317.54 and 71,872.41

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Solution

The fourth proportional to 125,599.71, 173,317.54 and 71,872.41 is: 99,178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,599.71 : 173,317.54 = 71,872.41 : x
  2. Step 2: Convert to fraction form
    125,599.71/173,317.54 = 71,872.41/x
  3. Step 3: Cross multiply
    125,599.71x = 173,317.54 × 71,872.41
  4. Step 4: Simplify right side
    125,599.71x = 12,456,749,295.07
  5. Step 5: Solve for x
    x = 12,456,749,295.07/125,599.71
  6. Step 6: Final answer
    x = 99,178.17

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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.