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Finding the Fourth Proportional to 98,093.13, 135,359.16 and 55,062.77

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Solution

The fourth proportional to 98,093.13, 135,359.16 and 55,062.77 is: 75,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,093.13 : 135,359.16 = 55,062.77 : x
  2. Step 2: Convert to fraction form
    98,093.13/135,359.16 = 55,062.77/x
  3. Step 3: Cross multiply
    98,093.13x = 135,359.16 × 55,062.77
  4. Step 4: Simplify right side
    98,093.13x = 7,453,250,294.47
  5. Step 5: Solve for x
    x = 7,453,250,294.47/98,093.13
  6. Step 6: Final answer
    x = 75,981.37

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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.