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Finding the Fourth Proportional to 125,696.55, 173,411.85 and 71,952.63

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Solution

The fourth proportional to 125,696.55, 173,411.85 and 71,952.63 is: 99,266.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,696.55 : 173,411.85 = 71,952.63 : x
  2. Step 2: Convert to fraction form
    125,696.55/173,411.85 = 71,952.63/x
  3. Step 3: Cross multiply
    125,696.55x = 173,411.85 × 71,952.63
  4. Step 4: Simplify right side
    125,696.55x = 12,477,438,680.67
  5. Step 5: Solve for x
    x = 12,477,438,680.67/125,696.55
  6. Step 6: Final answer
    x = 99,266.36

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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.