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Finding the Fourth Proportional to 124,361.26, 171,618.71 and 67,772.64

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Solution

The fourth proportional to 124,361.26, 171,618.71 and 67,772.64 is: 93,526.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,361.26 : 171,618.71 = 67,772.64 : x
  2. Step 2: Convert to fraction form
    124,361.26/171,618.71 = 67,772.64/x
  3. Step 3: Cross multiply
    124,361.26x = 171,618.71 × 67,772.64
  4. Step 4: Simplify right side
    124,361.26x = 11,631,052,624.63
  5. Step 5: Solve for x
    x = 11,631,052,624.63/124,361.26
  6. Step 6: Final answer
    x = 93,526.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.