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Finding the Fourth Proportional to 98,008.93, 135,194.61 and 61,652.44

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Solution

The fourth proportional to 98,008.93, 135,194.61 and 61,652.44 is: 85,044.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,008.93 : 135,194.61 = 61,652.44 : x
  2. Step 2: Convert to fraction form
    98,008.93/135,194.61 = 61,652.44/x
  3. Step 3: Cross multiply
    98,008.93x = 135,194.61 × 61,652.44
  4. Step 4: Simplify right side
    98,008.93x = 8,335,077,581.35
  5. Step 5: Solve for x
    x = 8,335,077,581.35/98,008.93
  6. Step 6: Final answer
    x = 85,044.06

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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.