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Finding the Fourth Proportional to 98,589.54, 136,058.46 and 58,326.86

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Solution

The fourth proportional to 98,589.54, 136,058.46 and 58,326.86 is: 80,493.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,589.54 : 136,058.46 = 58,326.86 : x
  2. Step 2: Convert to fraction form
    98,589.54/136,058.46 = 58,326.86/x
  3. Step 3: Cross multiply
    98,589.54x = 136,058.46 × 58,326.86
  4. Step 4: Simplify right side
    98,589.54x = 7,935,862,748.24
  5. Step 5: Solve for x
    x = 7,935,862,748.24/98,589.54
  6. Step 6: Final answer
    x = 80,493.96

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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.