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Finding the Fourth Proportional to 239,709.96, 359,471.52 and 89,868.51

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Solution

The fourth proportional to 239,709.96, 359,471.52 and 89,868.51 is: 134,767.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,709.96 : 359,471.52 = 89,868.51 : x
  2. Step 2: Convert to fraction form
    239,709.96/359,471.52 = 89,868.51/x
  3. Step 3: Cross multiply
    239,709.96x = 359,471.52 × 89,868.51
  4. Step 4: Simplify right side
    239,709.96x = 32,305,169,889.84
  5. Step 5: Solve for x
    x = 32,305,169,889.84/239,709.96
  6. Step 6: Final answer
    x = 134,767.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.