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Finding the Fourth Proportional to 275,351.47, 413,066.62 and 121,648.65

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Solution

The fourth proportional to 275,351.47, 413,066.62 and 121,648.65 is: 182,490.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,351.47 : 413,066.62 = 121,648.65 : x
  2. Step 2: Convert to fraction form
    275,351.47/413,066.62 = 121,648.65/x
  3. Step 3: Cross multiply
    275,351.47x = 413,066.62 × 121,648.65
  4. Step 4: Simplify right side
    275,351.47x = 50,248,996,925.35
  5. Step 5: Solve for x
    x = 50,248,996,925.35/275,351.47
  6. Step 6: Final answer
    x = 182,490.39

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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.