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Finding the Fourth Proportional to 55,058.44, 75,980.20 and 29,907.92

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Solution

The fourth proportional to 55,058.44, 75,980.20 and 29,907.92 is: 41,272.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,058.44 : 75,980.20 = 29,907.92 : x
  2. Step 2: Convert to fraction form
    55,058.44/75,980.20 = 29,907.92/x
  3. Step 3: Cross multiply
    55,058.44x = 75,980.20 × 29,907.92
  4. Step 4: Simplify right side
    55,058.44x = 2,272,409,743.18
  5. Step 5: Solve for x
    x = 2,272,409,743.18/55,058.44
  6. Step 6: Final answer
    x = 41,272.69

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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.