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Finding the Fourth Proportional to 98,092.38, 135,358.12 and 55,062.01

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Solution

The fourth proportional to 98,092.38, 135,358.12 and 55,062.01 is: 75,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,092.38 : 135,358.12 = 55,062.01 : x
  2. Step 2: Convert to fraction form
    98,092.38/135,358.12 = 55,062.01/x
  3. Step 3: Cross multiply
    98,092.38x = 135,358.12 × 55,062.01
  4. Step 4: Simplify right side
    98,092.38x = 7,453,090,157.02
  5. Step 5: Solve for x
    x = 7,453,090,157.02/98,092.38
  6. Step 6: Final answer
    x = 75,980.32

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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.