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Finding the Fourth Proportional to 99,616.60, 149,223.30 and 62,061.40

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Solution

The fourth proportional to 99,616.60, 149,223.30 and 62,061.40 is: 92,966.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,616.60 : 149,223.30 = 62,061.40 : x
  2. Step 2: Convert to fraction form
    99,616.60/149,223.30 = 62,061.40/x
  3. Step 3: Cross multiply
    99,616.60x = 149,223.30 × 62,061.40
  4. Step 4: Simplify right side
    99,616.60x = 9,261,006,910.62
  5. Step 5: Solve for x
    x = 9,261,006,910.62/99,616.60
  6. Step 6: Final answer
    x = 92,966.50

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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.