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Finding the Fourth Proportional to 367,891.62, 551,994.28 and 143,410.08

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Solution

The fourth proportional to 367,891.62, 551,994.28 and 143,410.08 is: 215,176.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,891.62 : 551,994.28 = 143,410.08 : x
  2. Step 2: Convert to fraction form
    367,891.62/551,994.28 = 143,410.08/x
  3. Step 3: Cross multiply
    367,891.62x = 551,994.28 × 143,410.08
  4. Step 4: Simplify right side
    367,891.62x = 79,161,543,854.34
  5. Step 5: Solve for x
    x = 79,161,543,854.34/367,891.62
  6. Step 6: Final answer
    x = 215,176.26

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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.