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Finding the Fourth Proportional to 103,559.38, 155,340.95 and 32,480.44

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Solution

The fourth proportional to 103,559.38, 155,340.95 and 32,480.44 is: 48,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,559.38 : 155,340.95 = 32,480.44 : x
  2. Step 2: Convert to fraction form
    103,559.38/155,340.95 = 32,480.44/x
  3. Step 3: Cross multiply
    103,559.38x = 155,340.95 × 32,480.44
  4. Step 4: Simplify right side
    103,559.38x = 5,045,542,406.02
  5. Step 5: Solve for x
    x = 5,045,542,406.02/103,559.38
  6. Step 6: Final answer
    x = 48,721.25

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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.