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Finding the Fourth Proportional to 100,652.60, 150,590.10 and 65,660.60

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Solution

The fourth proportional to 100,652.60, 150,590.10 and 65,660.60 is: 98,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,652.60 : 150,590.10 = 65,660.60 : x
  2. Step 2: Convert to fraction form
    100,652.60/150,590.10 = 65,660.60/x
  3. Step 3: Cross multiply
    100,652.60x = 150,590.10 × 65,660.60
  4. Step 4: Simplify right side
    100,652.60x = 9,887,836,320.06
  5. Step 5: Solve for x
    x = 9,887,836,320.06/100,652.60
  6. Step 6: Final answer
    x = 98,237.27

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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.