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Finding the Fourth Proportional to 109,258.52, 150,741.52 and 66,255.24

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Solution

The fourth proportional to 109,258.52, 150,741.52 and 66,255.24 is: 91,410.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,258.52 : 150,741.52 = 66,255.24 : x
  2. Step 2: Convert to fraction form
    109,258.52/150,741.52 = 66,255.24/x
  3. Step 3: Cross multiply
    109,258.52x = 150,741.52 × 66,255.24
  4. Step 4: Simplify right side
    109,258.52x = 9,987,415,585.56
  5. Step 5: Solve for x
    x = 9,987,415,585.56/109,258.52
  6. Step 6: Final answer
    x = 91,410.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.