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Finding the Fourth Proportional to 442,502.80, 663,756.60 and 110,078.80

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Solution

The fourth proportional to 442,502.80, 663,756.60 and 110,078.80 is: 165,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,502.80 : 663,756.60 = 110,078.80 : x
  2. Step 2: Convert to fraction form
    442,502.80/663,756.60 = 110,078.80/x
  3. Step 3: Cross multiply
    442,502.80x = 663,756.60 × 110,078.80
  4. Step 4: Simplify right side
    442,502.80x = 73,065,530,020.08
  5. Step 5: Solve for x
    x = 73,065,530,020.08/442,502.80
  6. Step 6: Final answer
    x = 165,118.80

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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.