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Finding the Fourth Proportional to 96,807.39, 145,205.87 and 30,239.88

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Solution

The fourth proportional to 96,807.39, 145,205.87 and 30,239.88 is: 45,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,807.39 : 145,205.87 = 30,239.88 : x
  2. Step 2: Convert to fraction form
    96,807.39/145,205.87 = 30,239.88/x
  3. Step 3: Cross multiply
    96,807.39x = 145,205.87 × 30,239.88
  4. Step 4: Simplify right side
    96,807.39x = 4,391,007,932.90
  5. Step 5: Solve for x
    x = 4,391,007,932.90/96,807.39
  6. Step 6: Final answer
    x = 45,358.19

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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.