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Finding the Fourth Proportional to 367,272.10, 550,908.15 and 209,808.10

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Solution

The fourth proportional to 367,272.10, 550,908.15 and 209,808.10 is: 314,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,272.10 : 550,908.15 = 209,808.10 : x
  2. Step 2: Convert to fraction form
    367,272.10/550,908.15 = 209,808.10/x
  3. Step 3: Cross multiply
    367,272.10x = 550,908.15 × 209,808.10
  4. Step 4: Simplify right side
    367,272.10x = 115,584,992,226.02
  5. Step 5: Solve for x
    x = 115,584,992,226.02/367,272.10
  6. Step 6: Final answer
    x = 314,712.15

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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.