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Finding the Fourth Proportional to 114,690.92, 158,296.73 and 66,294.90

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Solution

The fourth proportional to 114,690.92, 158,296.73 and 66,294.90 is: 91,500.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,690.92 : 158,296.73 = 66,294.90 : x
  2. Step 2: Convert to fraction form
    114,690.92/158,296.73 = 66,294.90/x
  3. Step 3: Cross multiply
    114,690.92x = 158,296.73 × 66,294.90
  4. Step 4: Simplify right side
    114,690.92x = 10,494,265,554.20
  5. Step 5: Solve for x
    x = 10,494,265,554.20/114,690.92
  6. Step 6: Final answer
    x = 91,500.41

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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.