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Finding the Fourth Proportional to 78,837.92, 108,792.48 and 43,027.04

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Solution

The fourth proportional to 78,837.92, 108,792.48 and 43,027.04 is: 59,375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,837.92 : 108,792.48 = 43,027.04 : x
  2. Step 2: Convert to fraction form
    78,837.92/108,792.48 = 43,027.04/x
  3. Step 3: Cross multiply
    78,837.92x = 108,792.48 × 43,027.04
  4. Step 4: Simplify right side
    78,837.92x = 4,681,018,388.66
  5. Step 5: Solve for x
    x = 4,681,018,388.66/78,837.92
  6. Step 6: Final answer
    x = 59,375.21

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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.