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Finding the Fourth Proportional to 382,616.80, 573,925.20 and 98,306.80

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Solution

The fourth proportional to 382,616.80, 573,925.20 and 98,306.80 is: 147,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,616.80 : 573,925.20 = 98,306.80 : x
  2. Step 2: Convert to fraction form
    382,616.80/573,925.20 = 98,306.80/x
  3. Step 3: Cross multiply
    382,616.80x = 573,925.20 × 98,306.80
  4. Step 4: Simplify right side
    382,616.80x = 56,420,749,851.36
  5. Step 5: Solve for x
    x = 56,420,749,851.36/382,616.80
  6. Step 6: Final answer
    x = 147,460.20

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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.