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Finding the Fourth Proportional to 74,648.88, 111,918.42 and 35,184.60

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Solution

The fourth proportional to 74,648.88, 111,918.42 and 35,184.60 is: 52,751.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,648.88 : 111,918.42 = 35,184.60 : x
  2. Step 2: Convert to fraction form
    74,648.88/111,918.42 = 35,184.60/x
  3. Step 3: Cross multiply
    74,648.88x = 111,918.42 × 35,184.60
  4. Step 4: Simplify right side
    74,648.88x = 3,937,804,840.33
  5. Step 5: Solve for x
    x = 3,937,804,840.33/74,648.88
  6. Step 6: Final answer
    x = 52,751.02

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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.