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Finding the Fourth Proportional to 522,861.28, 783,909.60 and 167,673.12

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Solution

The fourth proportional to 522,861.28, 783,909.60 and 167,673.12 is: 251,387.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,861.28 : 783,909.60 = 167,673.12 : x
  2. Step 2: Convert to fraction form
    522,861.28/783,909.60 = 167,673.12/x
  3. Step 3: Cross multiply
    522,861.28x = 783,909.60 × 167,673.12
  4. Step 4: Simplify right side
    522,861.28x = 131,440,568,429.95
  5. Step 5: Solve for x
    x = 131,440,568,429.95/522,861.28
  6. Step 6: Final answer
    x = 251,387.08

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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.