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Finding the Fourth Proportional to 99,373.62, 137,104.92 and 60,619.64

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Solution

The fourth proportional to 99,373.62, 137,104.92 and 60,619.64 is: 83,636.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,373.62 : 137,104.92 = 60,619.64 : x
  2. Step 2: Convert to fraction form
    99,373.62/137,104.92 = 60,619.64/x
  3. Step 3: Cross multiply
    99,373.62x = 137,104.92 × 60,619.64
  4. Step 4: Simplify right side
    99,373.62x = 8,311,250,207.10
  5. Step 5: Solve for x
    x = 8,311,250,207.10/99,373.62
  6. Step 6: Final answer
    x = 83,636.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.