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Finding the Fourth Proportional to 99,332.40, 148,998.60 and 29,218.80

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Solution

The fourth proportional to 99,332.40, 148,998.60 and 29,218.80 is: 43,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,332.40 : 148,998.60 = 29,218.80 : x
  2. Step 2: Convert to fraction form
    99,332.40/148,998.60 = 29,218.80/x
  3. Step 3: Cross multiply
    99,332.40x = 148,998.60 × 29,218.80
  4. Step 4: Simplify right side
    99,332.40x = 4,353,560,293.68
  5. Step 5: Solve for x
    x = 4,353,560,293.68/99,332.40
  6. Step 6: Final answer
    x = 43,828.20

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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.