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Finding the Fourth Proportional to 74,922.60, 112,383.90 and 35,556.60

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Solution

The fourth proportional to 74,922.60, 112,383.90 and 35,556.60 is: 53,334.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,922.60 : 112,383.90 = 35,556.60 : x
  2. Step 2: Convert to fraction form
    74,922.60/112,383.90 = 35,556.60/x
  3. Step 3: Cross multiply
    74,922.60x = 112,383.90 × 35,556.60
  4. Step 4: Simplify right side
    74,922.60x = 3,995,989,378.74
  5. Step 5: Solve for x
    x = 3,995,989,378.74/74,922.60
  6. Step 6: Final answer
    x = 53,334.90

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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.