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Finding the Fourth Proportional to 69,758.56, 104,646.48 and 25,406.20

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Solution

The fourth proportional to 69,758.56, 104,646.48 and 25,406.20 is: 38,112.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,758.56 : 104,646.48 = 25,406.20 : x
  2. Step 2: Convert to fraction form
    69,758.56/104,646.48 = 25,406.20/x
  3. Step 3: Cross multiply
    69,758.56x = 104,646.48 × 25,406.20
  4. Step 4: Simplify right side
    69,758.56x = 2,658,669,400.18
  5. Step 5: Solve for x
    x = 2,658,669,400.18/69,758.56
  6. Step 6: Final answer
    x = 38,112.45

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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.