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Finding the Fourth Proportional to 99,410.60, 148,897.20 and 88,329.80

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Solution

The fourth proportional to 99,410.60, 148,897.20 and 88,329.80 is: 132,300.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,410.60 : 148,897.20 = 88,329.80 : x
  2. Step 2: Convert to fraction form
    99,410.60/148,897.20 = 88,329.80/x
  3. Step 3: Cross multiply
    99,410.60x = 148,897.20 × 88,329.80
  4. Step 4: Simplify right side
    99,410.60x = 13,152,059,896.56
  5. Step 5: Solve for x
    x = 13,152,059,896.56/99,410.60
  6. Step 6: Final answer
    x = 132,300.38

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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.