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Finding the Fourth Proportional to 548,148.86, 822,311.94 and 168,980.88

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Solution

The fourth proportional to 548,148.86, 822,311.94 and 168,980.88 is: 253,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,148.86 : 822,311.94 = 168,980.88 : x
  2. Step 2: Convert to fraction form
    548,148.86/822,311.94 = 168,980.88/x
  3. Step 3: Cross multiply
    548,148.86x = 822,311.94 × 168,980.88
  4. Step 4: Simplify right side
    548,148.86x = 138,954,995,255.71
  5. Step 5: Solve for x
    x = 138,954,995,255.71/548,148.86
  6. Step 6: Final answer
    x = 253,498.65

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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.