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Finding the Fourth Proportional to 185,527.50, 256,028.45 and 100,644.57

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Solution

The fourth proportional to 185,527.50, 256,028.45 and 100,644.57 is: 138,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,527.50 : 256,028.45 = 100,644.57 : x
  2. Step 2: Convert to fraction form
    185,527.50/256,028.45 = 100,644.57/x
  3. Step 3: Cross multiply
    185,527.50x = 256,028.45 × 100,644.57
  4. Step 4: Simplify right side
    185,527.50x = 25,767,873,258.02
  5. Step 5: Solve for x
    x = 25,767,873,258.02/185,527.50
  6. Step 6: Final answer
    x = 138,889.78

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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.