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Finding the Fourth Proportional to 71,223.40, 106,844.70 and 24,490.60

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Solution

The fourth proportional to 71,223.40, 106,844.70 and 24,490.60 is: 36,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,223.40 : 106,844.70 = 24,490.60 : x
  2. Step 2: Convert to fraction form
    71,223.40/106,844.70 = 24,490.60/x
  3. Step 3: Cross multiply
    71,223.40x = 106,844.70 × 24,490.60
  4. Step 4: Simplify right side
    71,223.40x = 2,616,690,809.82
  5. Step 5: Solve for x
    x = 2,616,690,809.82/71,223.40
  6. Step 6: Final answer
    x = 36,739.20

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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.