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Finding the Fourth Proportional to 100,064.88, 150,215.58 and 40,944.60

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Solution

The fourth proportional to 100,064.88, 150,215.58 and 40,944.60 is: 61,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,064.88 : 150,215.58 = 40,944.60 : x
  2. Step 2: Convert to fraction form
    100,064.88/150,215.58 = 40,944.60/x
  3. Step 3: Cross multiply
    100,064.88x = 150,215.58 × 40,944.60
  4. Step 4: Simplify right side
    100,064.88x = 6,150,516,836.87
  5. Step 5: Solve for x
    x = 6,150,516,836.87/100,064.88
  6. Step 6: Final answer
    x = 61,465.29

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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.