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Finding the Fourth Proportional to 381,963.80, 572,567.70 and 168,847.40

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Solution

The fourth proportional to 381,963.80, 572,567.70 and 168,847.40 is: 253,104.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,963.80 : 572,567.70 = 168,847.40 : x
  2. Step 2: Convert to fraction form
    381,963.80/572,567.70 = 168,847.40/x
  3. Step 3: Cross multiply
    381,963.80x = 572,567.70 × 168,847.40
  4. Step 4: Simplify right side
    381,963.80x = 96,676,567,468.98
  5. Step 5: Solve for x
    x = 96,676,567,468.98/381,963.80
  6. Step 6: Final answer
    x = 253,104.00

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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.