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Finding the Fourth Proportional to 331,454.40, 497,253.60 and 121,092

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Solution

The fourth proportional to 331,454.40, 497,253.60 and 121,092 is: 181,664.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,454.40 : 497,253.60 = 121,092 : x
  2. Step 2: Convert to fraction form
    331,454.40/497,253.60 = 121,092/x
  3. Step 3: Cross multiply
    331,454.40x = 497,253.60 × 121,092
  4. Step 4: Simplify right side
    331,454.40x = 60,213,432,931.20
  5. Step 5: Solve for x
    x = 60,213,432,931.20/331,454.40
  6. Step 6: Final answer
    x = 181,664.30

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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.