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Finding the Fourth Proportional to 99,263.97, 148,957.46 and 40,100.15

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Solution

The fourth proportional to 99,263.97, 148,957.46 and 40,100.15 is: 60,175.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,263.97 : 148,957.46 = 40,100.15 : x
  2. Step 2: Convert to fraction form
    99,263.97/148,957.46 = 40,100.15/x
  3. Step 3: Cross multiply
    99,263.97x = 148,957.46 × 40,100.15
  4. Step 4: Simplify right side
    99,263.97x = 5,973,215,544.33
  5. Step 5: Solve for x
    x = 5,973,215,544.33/99,263.97
  6. Step 6: Final answer
    x = 60,175.06

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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.