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Finding the Fourth Proportional to 295,278.20, 442,917.30 and 162,567.80

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Solution

The fourth proportional to 295,278.20, 442,917.30 and 162,567.80 is: 243,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,278.20 : 442,917.30 = 162,567.80 : x
  2. Step 2: Convert to fraction form
    295,278.20/442,917.30 = 162,567.80/x
  3. Step 3: Cross multiply
    295,278.20x = 442,917.30 × 162,567.80
  4. Step 4: Simplify right side
    295,278.20x = 72,004,091,042.94
  5. Step 5: Solve for x
    x = 72,004,091,042.94/295,278.20
  6. Step 6: Final answer
    x = 243,851.70

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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.