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Finding the Fourth Proportional to 120,714.20, 181,070.40 and 36,474.20

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Solution

The fourth proportional to 120,714.20, 181,070.40 and 36,474.20 is: 54,711.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,714.20 : 181,070.40 = 36,474.20 : x
  2. Step 2: Convert to fraction form
    120,714.20/181,070.40 = 36,474.20/x
  3. Step 3: Cross multiply
    120,714.20x = 181,070.40 × 36,474.20
  4. Step 4: Simplify right side
    120,714.20x = 6,604,397,983.68
  5. Step 5: Solve for x
    x = 6,604,397,983.68/120,714.20
  6. Step 6: Final answer
    x = 54,711.03

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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.