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Finding the Fourth Proportional to 159,184.56, 219,672.34 and 87,560.31

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Solution

The fourth proportional to 159,184.56, 219,672.34 and 87,560.31 is: 120,831.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,184.56 : 219,672.34 = 87,560.31 : x
  2. Step 2: Convert to fraction form
    159,184.56/219,672.34 = 87,560.31/x
  3. Step 3: Cross multiply
    159,184.56x = 219,672.34 × 87,560.31
  4. Step 4: Simplify right side
    159,184.56x = 19,234,578,188.83
  5. Step 5: Solve for x
    x = 19,234,578,188.83/159,184.56
  6. Step 6: Final answer
    x = 120,831.93

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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.