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Finding the Fourth Proportional to 98,386.26, 135,773.06 and 55,947.39

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Solution

The fourth proportional to 98,386.26, 135,773.06 and 55,947.39 is: 77,207.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,386.26 : 135,773.06 = 55,947.39 : x
  2. Step 2: Convert to fraction form
    98,386.26/135,773.06 = 55,947.39/x
  3. Step 3: Cross multiply
    98,386.26x = 135,773.06 × 55,947.39
  4. Step 4: Simplify right side
    98,386.26x = 7,596,148,059.58
  5. Step 5: Solve for x
    x = 7,596,148,059.58/98,386.26
  6. Step 6: Final answer
    x = 77,207.41

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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.