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Finding the Fourth Proportional to 173,881.20, 261,138.60 and 103,897.20

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Solution

The fourth proportional to 173,881.20, 261,138.60 and 103,897.20 is: 156,035.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,881.20 : 261,138.60 = 103,897.20 : x
  2. Step 2: Convert to fraction form
    173,881.20/261,138.60 = 103,897.20/x
  3. Step 3: Cross multiply
    173,881.20x = 261,138.60 × 103,897.20
  4. Step 4: Simplify right side
    173,881.20x = 27,131,569,351.92
  5. Step 5: Solve for x
    x = 27,131,569,351.92/173,881.20
  6. Step 6: Final answer
    x = 156,035.09

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1.5x scale

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.