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Finding the Fourth Proportional to 91,362.80, 137,044.20 and 32,265.20

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Solution

The fourth proportional to 91,362.80, 137,044.20 and 32,265.20 is: 48,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,362.80 : 137,044.20 = 32,265.20 : x
  2. Step 2: Convert to fraction form
    91,362.80/137,044.20 = 32,265.20/x
  3. Step 3: Cross multiply
    91,362.80x = 137,044.20 × 32,265.20
  4. Step 4: Simplify right side
    91,362.80x = 4,421,758,521.84
  5. Step 5: Solve for x
    x = 4,421,758,521.84/91,362.80
  6. Step 6: Final answer
    x = 48,397.80

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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.