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Finding the Fourth Proportional to 382,952.80, 574,429.20 and 98,642.80

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Solution

The fourth proportional to 382,952.80, 574,429.20 and 98,642.80 is: 147,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,952.80 : 574,429.20 = 98,642.80 : x
  2. Step 2: Convert to fraction form
    382,952.80/574,429.20 = 98,642.80/x
  3. Step 3: Cross multiply
    382,952.80x = 574,429.20 × 98,642.80
  4. Step 4: Simplify right side
    382,952.80x = 56,663,304,689.76
  5. Step 5: Solve for x
    x = 56,663,304,689.76/382,952.80
  6. Step 6: Final answer
    x = 147,964.20

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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.