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Finding the Fourth Proportional to 167,003.30, 250,442.71 and 67,129.83

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Solution

The fourth proportional to 167,003.30, 250,442.71 and 67,129.83 is: 100,669.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,003.30 : 250,442.71 = 67,129.83 : x
  2. Step 2: Convert to fraction form
    167,003.30/250,442.71 = 67,129.83/x
  3. Step 3: Cross multiply
    167,003.30x = 250,442.71 × 67,129.83
  4. Step 4: Simplify right side
    167,003.30x = 16,812,176,547.04
  5. Step 5: Solve for x
    x = 16,812,176,547.04/167,003.30
  6. Step 6: Final answer
    x = 100,669.73

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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.