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Finding the Fourth Proportional to 125,374.54, 172,971.46 and 82,377.19

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Solution

The fourth proportional to 125,374.54, 172,971.46 and 82,377.19 is: 113,650.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,374.54 : 172,971.46 = 82,377.19 : x
  2. Step 2: Convert to fraction form
    125,374.54/172,971.46 = 82,377.19/x
  3. Step 3: Cross multiply
    125,374.54x = 172,971.46 × 82,377.19
  4. Step 4: Simplify right side
    125,374.54x = 14,248,902,622.94
  5. Step 5: Solve for x
    x = 14,248,902,622.94/125,374.54
  6. Step 6: Final answer
    x = 113,650.69

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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.