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Finding the Fourth Proportional to 548,149.86, 822,313.44 and 168,981.88

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Solution

The fourth proportional to 548,149.86, 822,313.44 and 168,981.88 is: 253,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,149.86 : 822,313.44 = 168,981.88 : x
  2. Step 2: Convert to fraction form
    548,149.86/822,313.44 = 168,981.88/x
  3. Step 3: Cross multiply
    548,149.86x = 822,313.44 × 168,981.88
  4. Step 4: Simplify right side
    548,149.86x = 138,956,071,040.47
  5. Step 5: Solve for x
    x = 138,956,071,040.47/548,149.86
  6. Step 6: Final answer
    x = 253,500.15

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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.