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Finding the Fourth Proportional to 99,276.80, 148,483.20 and 88,822.40

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Solution

The fourth proportional to 99,276.80, 148,483.20 and 88,822.40 is: 132,847.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,276.80 : 148,483.20 = 88,822.40 : x
  2. Step 2: Convert to fraction form
    99,276.80/148,483.20 = 88,822.40/x
  3. Step 3: Cross multiply
    99,276.80x = 148,483.20 × 88,822.40
  4. Step 4: Simplify right side
    99,276.80x = 13,188,634,183.68
  5. Step 5: Solve for x
    x = 13,188,634,183.68/99,276.80
  6. Step 6: Final answer
    x = 132,847.09

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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.