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Finding the Fourth Proportional to 100,568.64, 150,623.28 and 48,015.12

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Solution

The fourth proportional to 100,568.64, 150,623.28 and 48,015.12 is: 71,913.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,568.64 : 150,623.28 = 48,015.12 : x
  2. Step 2: Convert to fraction form
    100,568.64/150,623.28 = 48,015.12/x
  3. Step 3: Cross multiply
    100,568.64x = 150,623.28 × 48,015.12
  4. Step 4: Simplify right side
    100,568.64x = 7,232,194,863.99
  5. Step 5: Solve for x
    x = 7,232,194,863.99/100,568.64
  6. Step 6: Final answer
    x = 71,913.02

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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.