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Finding the Fourth Proportional to 218,732.20, 328,098.30 and 183,740.20

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Solution

The fourth proportional to 218,732.20, 328,098.30 and 183,740.20 is: 275,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,732.20 : 328,098.30 = 183,740.20 : x
  2. Step 2: Convert to fraction form
    218,732.20/328,098.30 = 183,740.20/x
  3. Step 3: Cross multiply
    218,732.20x = 328,098.30 × 183,740.20
  4. Step 4: Simplify right side
    218,732.20x = 60,284,847,261.66
  5. Step 5: Solve for x
    x = 60,284,847,261.66/218,732.20
  6. Step 6: Final answer
    x = 275,610.30

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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.