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Finding the Fourth Proportional to 68,962.86, 103,391.64 and 35,661.65

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Solution

The fourth proportional to 68,962.86, 103,391.64 and 35,661.65 is: 53,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,962.86 : 103,391.64 = 35,661.65 : x
  2. Step 2: Convert to fraction form
    68,962.86/103,391.64 = 35,661.65/x
  3. Step 3: Cross multiply
    68,962.86x = 103,391.64 × 35,661.65
  4. Step 4: Simplify right side
    68,962.86x = 3,687,115,961.65
  5. Step 5: Solve for x
    x = 3,687,115,961.65/68,962.86
  6. Step 6: Final answer
    x = 53,465.24

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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.