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Finding the Fourth Proportional to 173,732.40, 260,744.40 and 85,061.70

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Solution

The fourth proportional to 173,732.40, 260,744.40 and 85,061.70 is: 127,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,732.40 : 260,744.40 = 85,061.70 : x
  2. Step 2: Convert to fraction form
    173,732.40/260,744.40 = 85,061.70/x
  3. Step 3: Cross multiply
    173,732.40x = 260,744.40 × 85,061.70
  4. Step 4: Simplify right side
    173,732.40x = 22,179,361,929.48
  5. Step 5: Solve for x
    x = 22,179,361,929.48/173,732.40
  6. Step 6: Final answer
    x = 127,663.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.