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Finding the Fourth Proportional to 272,063.80, 408,095.70 and 254,438.20

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Solution

The fourth proportional to 272,063.80, 408,095.70 and 254,438.20 is: 381,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,063.80 : 408,095.70 = 254,438.20 : x
  2. Step 2: Convert to fraction form
    272,063.80/408,095.70 = 254,438.20/x
  3. Step 3: Cross multiply
    272,063.80x = 408,095.70 × 254,438.20
  4. Step 4: Simplify right side
    272,063.80x = 103,835,135,335.74
  5. Step 5: Solve for x
    x = 103,835,135,335.74/272,063.80
  6. Step 6: Final answer
    x = 381,657.30

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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.