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Finding the Fourth Proportional to 100,558.64, 150,836 and 40,585.52

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Solution

The fourth proportional to 100,558.64, 150,836 and 40,585.52 is: 60,877.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,558.64 : 150,836 = 40,585.52 : x
  2. Step 2: Convert to fraction form
    100,558.64/150,836 = 40,585.52/x
  3. Step 3: Cross multiply
    100,558.64x = 150,836 × 40,585.52
  4. Step 4: Simplify right side
    100,558.64x = 6,121,757,494.72
  5. Step 5: Solve for x
    x = 6,121,757,494.72/100,558.64
  6. Step 6: Final answer
    x = 60,877.49

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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.