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Finding the Fourth Proportional to 218,674.80, 328,165.80 and 94,105.20

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Solution

The fourth proportional to 218,674.80, 328,165.80 and 94,105.20 is: 141,223.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,674.80 : 328,165.80 = 94,105.20 : x
  2. Step 2: Convert to fraction form
    218,674.80/328,165.80 = 94,105.20/x
  3. Step 3: Cross multiply
    218,674.80x = 328,165.80 × 94,105.20
  4. Step 4: Simplify right side
    218,674.80x = 30,882,108,242.16
  5. Step 5: Solve for x
    x = 30,882,108,242.16/218,674.80
  6. Step 6: Final answer
    x = 141,223.90

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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.