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Finding the Fourth Proportional to 113,601.66, 156,770.94 and 65,883.36

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Solution

The fourth proportional to 113,601.66, 156,770.94 and 65,883.36 is: 90,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,601.66 : 156,770.94 = 65,883.36 : x
  2. Step 2: Convert to fraction form
    113,601.66/156,770.94 = 65,883.36/x
  3. Step 3: Cross multiply
    113,601.66x = 156,770.94 × 65,883.36
  4. Step 4: Simplify right side
    113,601.66x = 10,328,596,277.56
  5. Step 5: Solve for x
    x = 10,328,596,277.56/113,601.66
  6. Step 6: Final answer
    x = 90,919.41

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1.5x scale

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.