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Finding the Fourth Proportional to 172,836.60, 259,254.90 and 125,597.40

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Solution

The fourth proportional to 172,836.60, 259,254.90 and 125,597.40 is: 188,396.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,836.60 : 259,254.90 = 125,597.40 : x
  2. Step 2: Convert to fraction form
    172,836.60/259,254.90 = 125,597.40/x
  3. Step 3: Cross multiply
    172,836.60x = 259,254.90 × 125,597.40
  4. Step 4: Simplify right side
    172,836.60x = 32,561,741,377.26
  5. Step 5: Solve for x
    x = 32,561,741,377.26/172,836.60
  6. Step 6: Final answer
    x = 188,396.10

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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.