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Finding the Fourth Proportional to 255,958.79, 353,245.46 and 141,248.21

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Solution

The fourth proportional to 255,958.79, 353,245.46 and 141,248.21 is: 194,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,958.79 : 353,245.46 = 141,248.21 : x
  2. Step 2: Convert to fraction form
    255,958.79/353,245.46 = 141,248.21/x
  3. Step 3: Cross multiply
    255,958.79x = 353,245.46 × 141,248.21
  4. Step 4: Simplify right side
    255,958.79x = 49,895,286,443.16
  5. Step 5: Solve for x
    x = 49,895,286,443.16/255,958.79
  6. Step 6: Final answer
    x = 194,934.85

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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.