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Finding the Fourth Proportional to 74,159.49, 111,239.17 and 29,786.25

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Solution

The fourth proportional to 74,159.49, 111,239.17 and 29,786.25 is: 44,679.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,159.49 : 111,239.17 = 29,786.25 : x
  2. Step 2: Convert to fraction form
    74,159.49/111,239.17 = 29,786.25/x
  3. Step 3: Cross multiply
    74,159.49x = 111,239.17 × 29,786.25
  4. Step 4: Simplify right side
    74,159.49x = 3,313,397,652.95
  5. Step 5: Solve for x
    x = 3,313,397,652.95/74,159.49
  6. Step 6: Final answer
    x = 44,679.35

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1.5x scale

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.