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Finding the Fourth Proportional to 275,625.60, 413,044.80 and 157,046.40

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Solution

The fourth proportional to 275,625.60, 413,044.80 and 157,046.40 is: 235,345.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,625.60 : 413,044.80 = 157,046.40 : x
  2. Step 2: Convert to fraction form
    275,625.60/413,044.80 = 157,046.40/x
  3. Step 3: Cross multiply
    275,625.60x = 413,044.80 × 157,046.40
  4. Step 4: Simplify right side
    275,625.60x = 64,867,198,878.72
  5. Step 5: Solve for x
    x = 64,867,198,878.72/275,625.60
  6. Step 6: Final answer
    x = 235,345.33

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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.