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Finding the Fourth Proportional to 295,220.90, 442,874.55 and 154,990.10

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Solution

The fourth proportional to 295,220.90, 442,874.55 and 154,990.10 is: 232,507.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,220.90 : 442,874.55 = 154,990.10 : x
  2. Step 2: Convert to fraction form
    295,220.90/442,874.55 = 154,990.10/x
  3. Step 3: Cross multiply
    295,220.90x = 442,874.55 × 154,990.10
  4. Step 4: Simplify right side
    295,220.90x = 68,641,170,791.96
  5. Step 5: Solve for x
    x = 68,641,170,791.96/295,220.90
  6. Step 6: Final answer
    x = 232,507.83

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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.