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Finding the Fourth Proportional to 367,217.86, 550,720.08 and 153,979.90

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Solution

The fourth proportional to 367,217.86, 550,720.08 and 153,979.90 is: 230,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,217.86 : 550,720.08 = 153,979.90 : x
  2. Step 2: Convert to fraction form
    367,217.86/550,720.08 = 153,979.90/x
  3. Step 3: Cross multiply
    367,217.86x = 550,720.08 × 153,979.90
  4. Step 4: Simplify right side
    367,217.86x = 84,799,822,846.39
  5. Step 5: Solve for x
    x = 84,799,822,846.39/367,217.86
  6. Step 6: Final answer
    x = 230,925.10

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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.