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Finding the Fourth Proportional to 69,321.68, 103,400.08 and 62,936.22

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Solution

The fourth proportional to 69,321.68, 103,400.08 and 62,936.22 is: 93,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,321.68 : 103,400.08 = 62,936.22 : x
  2. Step 2: Convert to fraction form
    69,321.68/103,400.08 = 62,936.22/x
  3. Step 3: Cross multiply
    69,321.68x = 103,400.08 × 62,936.22
  4. Step 4: Simplify right side
    69,321.68x = 6,507,610,182.90
  5. Step 5: Solve for x
    x = 6,507,610,182.90/69,321.68
  6. Step 6: Final answer
    x = 93,875.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.