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Finding the Fourth Proportional to 71,990.65, 108,002.97 and 32,547.70

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Solution

The fourth proportional to 71,990.65, 108,002.97 and 32,547.70 is: 48,829.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,990.65 : 108,002.97 = 32,547.70 : x
  2. Step 2: Convert to fraction form
    71,990.65/108,002.97 = 32,547.70/x
  3. Step 3: Cross multiply
    71,990.65x = 108,002.97 × 32,547.70
  4. Step 4: Simplify right side
    71,990.65x = 3,515,248,266.67
  5. Step 5: Solve for x
    x = 3,515,248,266.67/71,990.65
  6. Step 6: Final answer
    x = 48,829.23

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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.