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Finding the Fourth Proportional to 99,550.80, 148,894.20 and 89,096.40

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Solution

The fourth proportional to 99,550.80, 148,894.20 and 89,096.40 is: 133,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,550.80 : 148,894.20 = 89,096.40 : x
  2. Step 2: Convert to fraction form
    99,550.80/148,894.20 = 89,096.40/x
  3. Step 3: Cross multiply
    99,550.80x = 148,894.20 × 89,096.40
  4. Step 4: Simplify right side
    99,550.80x = 13,265,937,200.88
  5. Step 5: Solve for x
    x = 13,265,937,200.88/99,550.80
  6. Step 6: Final answer
    x = 133,257.97

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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.