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Finding the Fourth Proportional to 147,230.48, 220,755.72 and 72,255.44

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Solution

The fourth proportional to 147,230.48, 220,755.72 and 72,255.44 is: 108,338.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,230.48 : 220,755.72 = 72,255.44 : x
  2. Step 2: Convert to fraction form
    147,230.48/220,755.72 = 72,255.44/x
  3. Step 3: Cross multiply
    147,230.48x = 220,755.72 × 72,255.44
  4. Step 4: Simplify right side
    147,230.48x = 15,950,801,681.12
  5. Step 5: Solve for x
    x = 15,950,801,681.12/147,230.48
  6. Step 6: Final answer
    x = 108,338.99

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1.5x scale

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.