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Finding the Fourth Proportional to 74,974.88, 112,462.38 and 19,570.88

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Solution

The fourth proportional to 74,974.88, 112,462.38 and 19,570.88 is: 29,356.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,974.88 : 112,462.38 = 19,570.88 : x
  2. Step 2: Convert to fraction form
    74,974.88/112,462.38 = 19,570.88/x
  3. Step 3: Cross multiply
    74,974.88x = 112,462.38 × 19,570.88
  4. Step 4: Simplify right side
    74,974.88x = 2,200,987,743.49
  5. Step 5: Solve for x
    x = 2,200,987,743.49/74,974.88
  6. Step 6: Final answer
    x = 29,356.34

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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.