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Finding the Fourth Proportional to 87,075.46, 120,165.49 and 48,843.49

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Solution

The fourth proportional to 87,075.46, 120,165.49 and 48,843.49 is: 67,404.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,075.46 : 120,165.49 = 48,843.49 : x
  2. Step 2: Convert to fraction form
    87,075.46/120,165.49 = 48,843.49/x
  3. Step 3: Cross multiply
    87,075.46x = 120,165.49 × 48,843.49
  4. Step 4: Simplify right side
    87,075.46x = 5,869,301,909.16
  5. Step 5: Solve for x
    x = 5,869,301,909.16/87,075.46
  6. Step 6: Final answer
    x = 67,404.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.