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Finding the Fourth Proportional to 120,754.98, 181,215.51 and 41,869.20

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Solution

The fourth proportional to 120,754.98, 181,215.51 and 41,869.20 is: 62,832.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,754.98 : 181,215.51 = 41,869.20 : x
  2. Step 2: Convert to fraction form
    120,754.98/181,215.51 = 41,869.20/x
  3. Step 3: Cross multiply
    120,754.98x = 181,215.51 × 41,869.20
  4. Step 4: Simplify right side
    120,754.98x = 7,587,348,953.84
  5. Step 5: Solve for x
    x = 7,587,348,953.84/120,754.98
  6. Step 6: Final answer
    x = 62,832.60

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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.