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Finding the Fourth Proportional to 447,706.80, 671,560.20 and 181,330.20

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Solution

The fourth proportional to 447,706.80, 671,560.20 and 181,330.20 is: 271,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,706.80 : 671,560.20 = 181,330.20 : x
  2. Step 2: Convert to fraction form
    447,706.80/671,560.20 = 181,330.20/x
  3. Step 3: Cross multiply
    447,706.80x = 671,560.20 × 181,330.20
  4. Step 4: Simplify right side
    447,706.80x = 121,774,145,378.04
  5. Step 5: Solve for x
    x = 121,774,145,378.04/447,706.80
  6. Step 6: Final answer
    x = 271,995.30

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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.