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Finding the Fourth Proportional to 125,492.76, 173,169.36 and 71,769.06

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Solution

The fourth proportional to 125,492.76, 173,169.36 and 71,769.06 is: 99,035.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,492.76 : 173,169.36 = 71,769.06 : x
  2. Step 2: Convert to fraction form
    125,492.76/173,169.36 = 71,769.06/x
  3. Step 3: Cross multiply
    125,492.76x = 173,169.36 × 71,769.06
  4. Step 4: Simplify right side
    125,492.76x = 12,428,202,188.00
  5. Step 5: Solve for x
    x = 12,428,202,188.00/125,492.76
  6. Step 6: Final answer
    x = 99,035.21

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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.