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Finding the Fourth Proportional to 136,980.43, 205,138.49 and 94,741.97

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Solution

The fourth proportional to 136,980.43, 205,138.49 and 94,741.97 is: 141,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,980.43 : 205,138.49 = 94,741.97 : x
  2. Step 2: Convert to fraction form
    136,980.43/205,138.49 = 94,741.97/x
  3. Step 3: Cross multiply
    136,980.43x = 205,138.49 × 94,741.97
  4. Step 4: Simplify right side
    136,980.43x = 19,435,223,166.02
  5. Step 5: Solve for x
    x = 19,435,223,166.02/136,980.43
  6. Step 6: Final answer
    x = 141,883.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.