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Finding the Fourth Proportional to 135,323.22, 186,743.46 and 74,893.89

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Solution

The fourth proportional to 135,323.22, 186,743.46 and 74,893.89 is: 103,352.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,323.22 : 186,743.46 = 74,893.89 : x
  2. Step 2: Convert to fraction form
    135,323.22/186,743.46 = 74,893.89/x
  3. Step 3: Cross multiply
    135,323.22x = 186,743.46 × 74,893.89
  4. Step 4: Simplify right side
    135,323.22x = 13,985,944,151.46
  5. Step 5: Solve for x
    x = 13,985,944,151.46/135,323.22
  6. Step 6: Final answer
    x = 103,352.14

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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.