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Finding the Fourth Proportional to 312,962.67, 469,326.15 and 113,233.68

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Solution

The fourth proportional to 312,962.67, 469,326.15 and 113,233.68 is: 169,807.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,962.67 : 469,326.15 = 113,233.68 : x
  2. Step 2: Convert to fraction form
    312,962.67/469,326.15 = 113,233.68/x
  3. Step 3: Cross multiply
    312,962.67x = 469,326.15 × 113,233.68
  4. Step 4: Simplify right side
    312,962.67x = 53,143,527,084.73
  5. Step 5: Solve for x
    x = 53,143,527,084.73/312,962.67
  6. Step 6: Final answer
    x = 169,807.88

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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.