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Finding the Fourth Proportional to 141,598.32, 195,404.19 and 77,934.78

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Solution

The fourth proportional to 141,598.32, 195,404.19 and 77,934.78 is: 107,549.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,598.32 : 195,404.19 = 77,934.78 : x
  2. Step 2: Convert to fraction form
    141,598.32/195,404.19 = 77,934.78/x
  3. Step 3: Cross multiply
    141,598.32x = 195,404.19 × 77,934.78
  4. Step 4: Simplify right side
    141,598.32x = 15,228,782,558.73
  5. Step 5: Solve for x
    x = 15,228,782,558.73/141,598.32
  6. Step 6: Final answer
    x = 107,549.18

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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.