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Finding the Fourth Proportional to 353,793.53, 488,110.52 and 231,357.58

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Solution

The fourth proportional to 353,793.53, 488,110.52 and 231,357.58 is: 319,192.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,793.53 : 488,110.52 = 231,357.58 : x
  2. Step 2: Convert to fraction form
    353,793.53/488,110.52 = 231,357.58/x
  3. Step 3: Cross multiply
    353,793.53x = 488,110.52 × 231,357.58
  4. Step 4: Simplify right side
    353,793.53x = 112,928,068,037.86
  5. Step 5: Solve for x
    x = 112,928,068,037.86/353,793.53
  6. Step 6: Final answer
    x = 319,192.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.