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Finding the Fourth Proportional to 130,717.60, 196,270.80 and 101,168.80

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Solution

The fourth proportional to 130,717.60, 196,270.80 and 101,168.80 is: 151,903.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,717.60 : 196,270.80 = 101,168.80 : x
  2. Step 2: Convert to fraction form
    130,717.60/196,270.80 = 101,168.80/x
  3. Step 3: Cross multiply
    130,717.60x = 196,270.80 × 101,168.80
  4. Step 4: Simplify right side
    130,717.60x = 19,856,481,311.04
  5. Step 5: Solve for x
    x = 19,856,481,311.04/130,717.60
  6. Step 6: Final answer
    x = 151,903.66

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1.5x scale

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.