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Finding the Fourth Proportional to 144,393.52, 216,593.88 and 68,474.20

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Solution

The fourth proportional to 144,393.52, 216,593.88 and 68,474.20 is: 102,713.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,393.52 : 216,593.88 = 68,474.20 : x
  2. Step 2: Convert to fraction form
    144,393.52/216,593.88 = 68,474.20/x
  3. Step 3: Cross multiply
    144,393.52x = 216,593.88 × 68,474.20
  4. Step 4: Simplify right side
    144,393.52x = 14,831,092,657.90
  5. Step 5: Solve for x
    x = 14,831,092,657.90/144,393.52
  6. Step 6: Final answer
    x = 102,713.01

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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.