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Finding the Fourth Proportional to 74,351.61, 111,549.26 and 29,955.51

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Solution

The fourth proportional to 74,351.61, 111,549.26 and 29,955.51 is: 44,942.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,351.61 : 111,549.26 = 29,955.51 : x
  2. Step 2: Convert to fraction form
    74,351.61/111,549.26 = 29,955.51/x
  3. Step 3: Cross multiply
    74,351.61x = 111,549.26 × 29,955.51
  4. Step 4: Simplify right side
    74,351.61x = 3,341,515,048.31
  5. Step 5: Solve for x
    x = 3,341,515,048.31/74,351.61
  6. Step 6: Final answer
    x = 44,942.07

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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.