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Finding the Fourth Proportional to 125,850.68, 173,677.88 and 71,405.15

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Solution

The fourth proportional to 125,850.68, 173,677.88 and 71,405.15 is: 98,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,850.68 : 173,677.88 = 71,405.15 : x
  2. Step 2: Convert to fraction form
    125,850.68/173,677.88 = 71,405.15/x
  3. Step 3: Cross multiply
    125,850.68x = 173,677.88 × 71,405.15
  4. Step 4: Simplify right side
    125,850.68x = 12,401,494,204.69
  5. Step 5: Solve for x
    x = 12,401,494,204.69/125,850.68
  6. Step 6: Final answer
    x = 98,541.34

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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.