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Finding the Fourth Proportional to 159,756.68, 239,683.62 and 75,581.48

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Solution

The fourth proportional to 159,756.68, 239,683.62 and 75,581.48 is: 113,395.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,756.68 : 239,683.62 = 75,581.48 : x
  2. Step 2: Convert to fraction form
    159,756.68/239,683.62 = 75,581.48/x
  3. Step 3: Cross multiply
    159,756.68x = 239,683.62 × 75,581.48
  4. Step 4: Simplify right side
    159,756.68x = 18,115,642,731.36
  5. Step 5: Solve for x
    x = 18,115,642,731.36/159,756.68
  6. Step 6: Final answer
    x = 113,395.21

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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.