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Finding the Fourth Proportional to 159,548.84, 220,173.07 and 87,928.84

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Solution

The fourth proportional to 159,548.84, 220,173.07 and 87,928.84 is: 121,339.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,548.84 : 220,173.07 = 87,928.84 : x
  2. Step 2: Convert to fraction form
    159,548.84/220,173.07 = 87,928.84/x
  3. Step 3: Cross multiply
    159,548.84x = 220,173.07 × 87,928.84
  4. Step 4: Simplify right side
    159,548.84x = 19,359,561,103.83
  5. Step 5: Solve for x
    x = 19,359,561,103.83/159,548.84
  6. Step 6: Final answer
    x = 121,339.41

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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.