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Finding the Fourth Proportional to 110,309.79, 152,382.56 and 98,369.31

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Solution

The fourth proportional to 110,309.79, 152,382.56 and 98,369.31 is: 135,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,309.79 : 152,382.56 = 98,369.31 : x
  2. Step 2: Convert to fraction form
    110,309.79/152,382.56 = 98,369.31/x
  3. Step 3: Cross multiply
    110,309.79x = 152,382.56 × 98,369.31
  4. Step 4: Simplify right side
    110,309.79x = 14,989,766,791.39
  5. Step 5: Solve for x
    x = 14,989,766,791.39/110,309.79
  6. Step 6: Final answer
    x = 135,887.91

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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.