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Finding the Fourth Proportional to 275,281.40, 413,181.30 and 170,305.40

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Solution

The fourth proportional to 275,281.40, 413,181.30 and 170,305.40 is: 255,618.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,281.40 : 413,181.30 = 170,305.40 : x
  2. Step 2: Convert to fraction form
    275,281.40/413,181.30 = 170,305.40/x
  3. Step 3: Cross multiply
    275,281.40x = 413,181.30 × 170,305.40
  4. Step 4: Simplify right side
    275,281.40x = 70,367,006,569.02
  5. Step 5: Solve for x
    x = 70,367,006,569.02/275,281.40
  6. Step 6: Final answer
    x = 255,618.46

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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.