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Finding the Fourth Proportional to 172,910.35, 238,618.10 and 97,458.85

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Solution

The fourth proportional to 172,910.35, 238,618.10 and 97,458.85 is: 134,494.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,910.35 : 238,618.10 = 97,458.85 : x
  2. Step 2: Convert to fraction form
    172,910.35/238,618.10 = 97,458.85/x
  3. Step 3: Cross multiply
    172,910.35x = 238,618.10 × 97,458.85
  4. Step 4: Simplify right side
    172,910.35x = 23,255,445,615.19
  5. Step 5: Solve for x
    x = 23,255,445,615.19/172,910.35
  6. Step 6: Final answer
    x = 134,494.24

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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.