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Finding the Fourth Proportional to 268,306.92, 370,245.64 and 147,445.61

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Solution

The fourth proportional to 268,306.92, 370,245.64 and 147,445.61 is: 203,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,306.92 : 370,245.64 = 147,445.61 : x
  2. Step 2: Convert to fraction form
    268,306.92/370,245.64 = 147,445.61/x
  3. Step 3: Cross multiply
    268,306.92x = 370,245.64 × 147,445.61
  4. Step 4: Simplify right side
    268,306.92x = 54,591,094,239.64
  5. Step 5: Solve for x
    x = 54,591,094,239.64/268,306.92
  6. Step 6: Final answer
    x = 203,465.10

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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.