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Finding the Fourth Proportional to 69,232.80, 103,698.33 and 45,513.54

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Solution

The fourth proportional to 69,232.80, 103,698.33 and 45,513.54 is: 68,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,232.80 : 103,698.33 = 45,513.54 : x
  2. Step 2: Convert to fraction form
    69,232.80/103,698.33 = 45,513.54/x
  3. Step 3: Cross multiply
    69,232.80x = 103,698.33 × 45,513.54
  4. Step 4: Simplify right side
    69,232.80x = 4,719,678,090.39
  5. Step 5: Solve for x
    x = 4,719,678,090.39/69,232.80
  6. Step 6: Final answer
    x = 68,171.13

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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.