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Finding the Fourth Proportional to 91,703.65, 137,537.96 and 28,524.53

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Solution

The fourth proportional to 91,703.65, 137,537.96 and 28,524.53 is: 42,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,703.65 : 137,537.96 = 28,524.53 : x
  2. Step 2: Convert to fraction form
    91,703.65/137,537.96 = 28,524.53/x
  3. Step 3: Cross multiply
    91,703.65x = 137,537.96 × 28,524.53
  4. Step 4: Simplify right side
    91,703.65x = 3,923,205,867.38
  5. Step 5: Solve for x
    x = 3,923,205,867.38/91,703.65
  6. Step 6: Final answer
    x = 42,781.35

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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.