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Finding the Fourth Proportional to 100,231.60, 150,347.40 and 41,109.70

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Solution

The fourth proportional to 100,231.60, 150,347.40 and 41,109.70 is: 61,664.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,231.60 : 150,347.40 = 41,109.70 : x
  2. Step 2: Convert to fraction form
    100,231.60/150,347.40 = 41,109.70/x
  3. Step 3: Cross multiply
    100,231.60x = 150,347.40 × 41,109.70
  4. Step 4: Simplify right side
    100,231.60x = 6,180,736,509.78
  5. Step 5: Solve for x
    x = 6,180,736,509.78/100,231.60
  6. Step 6: Final answer
    x = 61,664.55

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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.