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Finding the Fourth Proportional to 382,061.12, 572,304.12 and 223,809.76

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Solution

The fourth proportional to 382,061.12, 572,304.12 and 223,809.76 is: 335,253.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,061.12 : 572,304.12 = 223,809.76 : x
  2. Step 2: Convert to fraction form
    382,061.12/572,304.12 = 223,809.76/x
  3. Step 3: Cross multiply
    382,061.12x = 572,304.12 × 223,809.76
  4. Step 4: Simplify right side
    382,061.12x = 128,087,247,744.21
  5. Step 5: Solve for x
    x = 128,087,247,744.21/382,061.12
  6. Step 6: Final answer
    x = 335,253.29

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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.