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Finding the Fourth Proportional to 159,604.56, 220,247.54 and 87,005.88

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Solution

The fourth proportional to 159,604.56, 220,247.54 and 87,005.88 is: 120,064.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,604.56 : 220,247.54 = 87,005.88 : x
  2. Step 2: Convert to fraction form
    159,604.56/220,247.54 = 87,005.88/x
  3. Step 3: Cross multiply
    159,604.56x = 220,247.54 × 87,005.88
  4. Step 4: Simplify right side
    159,604.56x = 19,162,831,416.19
  5. Step 5: Solve for x
    x = 19,162,831,416.19/159,604.56
  6. Step 6: Final answer
    x = 120,064.44

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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.