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Finding the Fourth Proportional to 136,476.20, 204,714.30 and 47,700.20

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Solution

The fourth proportional to 136,476.20, 204,714.30 and 47,700.20 is: 71,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,476.20 : 204,714.30 = 47,700.20 : x
  2. Step 2: Convert to fraction form
    136,476.20/204,714.30 = 47,700.20/x
  3. Step 3: Cross multiply
    136,476.20x = 204,714.30 × 47,700.20
  4. Step 4: Simplify right side
    136,476.20x = 9,764,913,052.86
  5. Step 5: Solve for x
    x = 9,764,913,052.86/136,476.20
  6. Step 6: Final answer
    x = 71,550.30

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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.