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Finding the Fourth Proportional to 62,138.72, 93,210.52 and 27,078.68

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Solution

The fourth proportional to 62,138.72, 93,210.52 and 27,078.68 is: 40,619.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,138.72 : 93,210.52 = 27,078.68 : x
  2. Step 2: Convert to fraction form
    62,138.72/93,210.52 = 27,078.68/x
  3. Step 3: Cross multiply
    62,138.72x = 93,210.52 × 27,078.68
  4. Step 4: Simplify right side
    62,138.72x = 2,524,017,843.71
  5. Step 5: Solve for x
    x = 2,524,017,843.71/62,138.72
  6. Step 6: Final answer
    x = 40,619.08

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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.