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Finding the Fourth Proportional to 218,335.80, 326,726.10 and 151,462.20

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Solution

The fourth proportional to 218,335.80, 326,726.10 and 151,462.20 is: 226,653.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,335.80 : 326,726.10 = 151,462.20 : x
  2. Step 2: Convert to fraction form
    218,335.80/326,726.10 = 151,462.20/x
  3. Step 3: Cross multiply
    218,335.80x = 326,726.10 × 151,462.20
  4. Step 4: Simplify right side
    218,335.80x = 49,486,653,903.42
  5. Step 5: Solve for x
    x = 49,486,653,903.42/218,335.80
  6. Step 6: Final answer
    x = 226,653.87

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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.