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Finding the Fourth Proportional to 101,639.16, 152,479.19 and 35,081.87

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Solution

The fourth proportional to 101,639.16, 152,479.19 and 35,081.87 is: 52,629.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,639.16 : 152,479.19 = 35,081.87 : x
  2. Step 2: Convert to fraction form
    101,639.16/152,479.19 = 35,081.87/x
  3. Step 3: Cross multiply
    101,639.16x = 152,479.19 × 35,081.87
  4. Step 4: Simplify right side
    101,639.16x = 5,349,254,183.48
  5. Step 5: Solve for x
    x = 5,349,254,183.48/101,639.16
  6. Step 6: Final answer
    x = 52,629.85

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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.