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Finding the Fourth Proportional to 70,745.66, 105,984.79 and 41,807.95

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Solution

The fourth proportional to 70,745.66, 105,984.79 and 41,807.95 is: 62,632.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,745.66 : 105,984.79 = 41,807.95 : x
  2. Step 2: Convert to fraction form
    70,745.66/105,984.79 = 41,807.95/x
  3. Step 3: Cross multiply
    70,745.66x = 105,984.79 × 41,807.95
  4. Step 4: Simplify right side
    70,745.66x = 4,431,006,801.08
  5. Step 5: Solve for x
    x = 4,431,006,801.08/70,745.66
  6. Step 6: Final answer
    x = 62,632.91

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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.