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Finding the Fourth Proportional to 101,568.83, 152,411.58 and 79,319.75

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Solution

The fourth proportional to 101,568.83, 152,411.58 and 79,319.75 is: 119,025.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,568.83 : 152,411.58 = 79,319.75 : x
  2. Step 2: Convert to fraction form
    101,568.83/152,411.58 = 79,319.75/x
  3. Step 3: Cross multiply
    101,568.83x = 152,411.58 × 79,319.75
  4. Step 4: Simplify right side
    101,568.83x = 12,089,247,660.65
  5. Step 5: Solve for x
    x = 12,089,247,660.65/101,568.83
  6. Step 6: Final answer
    x = 119,025.18

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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.