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Finding the Fourth Proportional to 518,307.96, 777,184.92 and 163,226.64

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Solution

The fourth proportional to 518,307.96, 777,184.92 and 163,226.64 is: 244,752.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,307.96 : 777,184.92 = 163,226.64 : x
  2. Step 2: Convert to fraction form
    518,307.96/777,184.92 = 163,226.64/x
  3. Step 3: Cross multiply
    518,307.96x = 777,184.92 × 163,226.64
  4. Step 4: Simplify right side
    518,307.96x = 126,857,283,150.27
  5. Step 5: Solve for x
    x = 126,857,283,150.27/518,307.96
  6. Step 6: Final answer
    x = 244,752.72

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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.