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Finding the Fourth Proportional to 113,749.65, 156,950.46 and 65,996.91

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Solution

The fourth proportional to 113,749.65, 156,950.46 and 65,996.91 is: 91,061.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,749.65 : 156,950.46 = 65,996.91 : x
  2. Step 2: Convert to fraction form
    113,749.65/156,950.46 = 65,996.91/x
  3. Step 3: Cross multiply
    113,749.65x = 156,950.46 × 65,996.91
  4. Step 4: Simplify right side
    113,749.65x = 10,358,245,383.08
  5. Step 5: Solve for x
    x = 10,358,245,383.08/113,749.65
  6. Step 6: Final answer
    x = 91,061.78

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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.