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Finding the Fourth Proportional to 125,054.34, 172,573.92 and 67,693.38

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Solution

The fourth proportional to 125,054.34, 172,573.92 and 67,693.38 is: 93,416.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,054.34 : 172,573.92 = 67,693.38 : x
  2. Step 2: Convert to fraction form
    125,054.34/172,573.92 = 67,693.38/x
  3. Step 3: Cross multiply
    125,054.34x = 172,573.92 × 67,693.38
  4. Step 4: Simplify right side
    125,054.34x = 11,682,111,944.65
  5. Step 5: Solve for x
    x = 11,682,111,944.65/125,054.34
  6. Step 6: Final answer
    x = 93,416.29

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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.