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Finding the Fourth Proportional to 125,598.71, 173,316.16 and 71,871.41

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Solution

The fourth proportional to 125,598.71, 173,316.16 and 71,871.41 is: 99,176.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,598.71 : 173,316.16 = 71,871.41 : x
  2. Step 2: Convert to fraction form
    125,598.71/173,316.16 = 71,871.41/x
  3. Step 3: Cross multiply
    125,598.71x = 173,316.16 × 71,871.41
  4. Step 4: Simplify right side
    125,598.71x = 12,456,476,794.99
  5. Step 5: Solve for x
    x = 12,456,476,794.99/125,598.71
  6. Step 6: Final answer
    x = 99,176.79

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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.