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Finding the Fourth Proportional to 99,071.20, 148,617.60 and 95,960.80

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Solution

The fourth proportional to 99,071.20, 148,617.60 and 95,960.80 is: 143,951.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,071.20 : 148,617.60 = 95,960.80 : x
  2. Step 2: Convert to fraction form
    99,071.20/148,617.60 = 95,960.80/x
  3. Step 3: Cross multiply
    99,071.20x = 148,617.60 × 95,960.80
  4. Step 4: Simplify right side
    99,071.20x = 14,261,463,790.08
  5. Step 5: Solve for x
    x = 14,261,463,790.08/99,071.20
  6. Step 6: Final answer
    x = 143,951.66

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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.