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Finding the Fourth Proportional to 159,191.64, 219,679.74 and 87,571.62

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Solution

The fourth proportional to 159,191.64, 219,679.74 and 87,571.62 is: 120,846.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,191.64 : 219,679.74 = 87,571.62 : x
  2. Step 2: Convert to fraction form
    159,191.64/219,679.74 = 87,571.62/x
  3. Step 3: Cross multiply
    159,191.64x = 219,679.74 × 87,571.62
  4. Step 4: Simplify right side
    159,191.64x = 19,237,710,712.98
  5. Step 5: Solve for x
    x = 19,237,710,712.98/159,191.64
  6. Step 6: Final answer
    x = 120,846.24

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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.