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Finding the Fourth Proportional to 257,247.99, 354,938.10 and 148,385.61

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Solution

The fourth proportional to 257,247.99, 354,938.10 and 148,385.61 is: 204,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,247.99 : 354,938.10 = 148,385.61 : x
  2. Step 2: Convert to fraction form
    257,247.99/354,938.10 = 148,385.61/x
  3. Step 3: Cross multiply
    257,247.99x = 354,938.10 × 148,385.61
  4. Step 4: Simplify right side
    257,247.99x = 52,667,706,480.74
  5. Step 5: Solve for x
    x = 52,667,706,480.74/257,247.99
  6. Step 6: Final answer
    x = 204,735.15

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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.