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Finding the Fourth Proportional to 295,206.80, 442,810.20 and 251,029.40

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Solution

The fourth proportional to 295,206.80, 442,810.20 and 251,029.40 is: 376,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,206.80 : 442,810.20 = 251,029.40 : x
  2. Step 2: Convert to fraction form
    295,206.80/442,810.20 = 251,029.40/x
  3. Step 3: Cross multiply
    295,206.80x = 442,810.20 × 251,029.40
  4. Step 4: Simplify right side
    295,206.80x = 111,158,378,819.88
  5. Step 5: Solve for x
    x = 111,158,378,819.88/295,206.80
  6. Step 6: Final answer
    x = 376,544.10

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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.