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Finding the Fourth Proportional to 107,268, 148,029.84 and 69,542.25

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Solution

The fourth proportional to 107,268, 148,029.84 and 69,542.25 is: 95,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,268 : 148,029.84 = 69,542.25 : x
  2. Step 2: Convert to fraction form
    107,268/148,029.84 = 69,542.25/x
  3. Step 3: Cross multiply
    107,268x = 148,029.84 × 69,542.25
  4. Step 4: Simplify right side
    107,268x = 10,294,328,140.74
  5. Step 5: Solve for x
    x = 10,294,328,140.74/107,268
  6. Step 6: Final answer
    x = 95,968.31

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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.