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Finding the Fourth Proportional to 168,719.65, 253,028.35 and 88,714.51

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Solution

The fourth proportional to 168,719.65, 253,028.35 and 88,714.51 is: 133,044.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,719.65 : 253,028.35 = 88,714.51 : x
  2. Step 2: Convert to fraction form
    168,719.65/253,028.35 = 88,714.51/x
  3. Step 3: Cross multiply
    168,719.65x = 253,028.35 × 88,714.51
  4. Step 4: Simplify right side
    168,719.65x = 22,447,286,086.36
  5. Step 5: Solve for x
    x = 22,447,286,086.36/168,719.65
  6. Step 6: Final answer
    x = 133,044.88

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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.