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Finding the Fourth Proportional to 261,793.30, 361,253.46 and 147,065.71

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Solution

The fourth proportional to 261,793.30, 361,253.46 and 147,065.71 is: 202,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,793.30 : 361,253.46 = 147,065.71 : x
  2. Step 2: Convert to fraction form
    261,793.30/361,253.46 = 147,065.71/x
  3. Step 3: Cross multiply
    261,793.30x = 361,253.46 × 147,065.71
  4. Step 4: Simplify right side
    261,793.30x = 53,127,996,584.86
  5. Step 5: Solve for x
    x = 53,127,996,584.86/261,793.30
  6. Step 6: Final answer
    x = 202,938.72

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1.5x scale

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.