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Finding the Fourth Proportional to 185,701.60, 278,552.40 and 129,714.40

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Solution

The fourth proportional to 185,701.60, 278,552.40 and 129,714.40 is: 194,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,701.60 : 278,552.40 = 129,714.40 : x
  2. Step 2: Convert to fraction form
    185,701.60/278,552.40 = 129,714.40/x
  3. Step 3: Cross multiply
    185,701.60x = 278,552.40 × 129,714.40
  4. Step 4: Simplify right side
    185,701.60x = 36,132,257,434.56
  5. Step 5: Solve for x
    x = 36,132,257,434.56/185,701.60
  6. Step 6: Final answer
    x = 194,571.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.