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Finding the Fourth Proportional to 134,714.80, 202,290.90 and 75,665.80

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Solution

The fourth proportional to 134,714.80, 202,290.90 and 75,665.80 is: 113,621.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,714.80 : 202,290.90 = 75,665.80 : x
  2. Step 2: Convert to fraction form
    134,714.80/202,290.90 = 75,665.80/x
  3. Step 3: Cross multiply
    134,714.80x = 202,290.90 × 75,665.80
  4. Step 4: Simplify right side
    134,714.80x = 15,306,502,781.22
  5. Step 5: Solve for x
    x = 15,306,502,781.22/134,714.80
  6. Step 6: Final answer
    x = 113,621.54

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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.