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Finding the Fourth Proportional to 295,309.20, 442,963.80 and 176,919.60

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Solution

The fourth proportional to 295,309.20, 442,963.80 and 176,919.60 is: 265,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,309.20 : 442,963.80 = 176,919.60 : x
  2. Step 2: Convert to fraction form
    295,309.20/442,963.80 = 176,919.60/x
  3. Step 3: Cross multiply
    295,309.20x = 442,963.80 × 176,919.60
  4. Step 4: Simplify right side
    295,309.20x = 78,368,978,310.48
  5. Step 5: Solve for x
    x = 78,368,978,310.48/295,309.20
  6. Step 6: Final answer
    x = 265,379.40

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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.