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Finding the Fourth Proportional to 172,680.80, 238,298.64 and 96,200.72

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Solution

The fourth proportional to 172,680.80, 238,298.64 and 96,200.72 is: 132,756.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,680.80 : 238,298.64 = 96,200.72 : x
  2. Step 2: Convert to fraction form
    172,680.80/238,298.64 = 96,200.72/x
  3. Step 3: Cross multiply
    172,680.80x = 238,298.64 × 96,200.72
  4. Step 4: Simplify right side
    172,680.80x = 22,924,500,743.02
  5. Step 5: Solve for x
    x = 22,924,500,743.02/172,680.80
  6. Step 6: Final answer
    x = 132,756.51

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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.