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Finding the Fourth Proportional to 441,988.80, 662,983.20 and 161,707.20

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Solution

The fourth proportional to 441,988.80, 662,983.20 and 161,707.20 is: 242,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,988.80 : 662,983.20 = 161,707.20 : x
  2. Step 2: Convert to fraction form
    441,988.80/662,983.20 = 161,707.20/x
  3. Step 3: Cross multiply
    441,988.80x = 662,983.20 × 161,707.20
  4. Step 4: Simplify right side
    441,988.80x = 107,209,156,919.04
  5. Step 5: Solve for x
    x = 107,209,156,919.04/441,988.80
  6. Step 6: Final answer
    x = 242,560.80

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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.