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Finding the Fourth Proportional to 381,969.80, 572,576.70 and 168,853.40

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Solution

The fourth proportional to 381,969.80, 572,576.70 and 168,853.40 is: 253,113.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,969.80 : 572,576.70 = 168,853.40 : x
  2. Step 2: Convert to fraction form
    381,969.80/572,576.70 = 168,853.40/x
  3. Step 3: Cross multiply
    381,969.80x = 572,576.70 × 168,853.40
  4. Step 4: Simplify right side
    381,969.80x = 96,681,522,555.78
  5. Step 5: Solve for x
    x = 96,681,522,555.78/381,969.80
  6. Step 6: Final answer
    x = 253,113.00

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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.