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Finding the Fourth Proportional to 218,633.80, 328,104.30 and 94,064.20

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Solution

The fourth proportional to 218,633.80, 328,104.30 and 94,064.20 is: 141,162.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,633.80 : 328,104.30 = 94,064.20 : x
  2. Step 2: Convert to fraction form
    218,633.80/328,104.30 = 94,064.20/x
  3. Step 3: Cross multiply
    218,633.80x = 328,104.30 × 94,064.20
  4. Step 4: Simplify right side
    218,633.80x = 30,862,868,496.06
  5. Step 5: Solve for x
    x = 30,862,868,496.06/218,633.80
  6. Step 6: Final answer
    x = 141,162.38

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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.