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Finding the Fourth Proportional to 74,825.34, 112,242.87 and 22,230.42

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Solution

The fourth proportional to 74,825.34, 112,242.87 and 22,230.42 is: 33,347.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,825.34 : 112,242.87 = 22,230.42 : x
  2. Step 2: Convert to fraction form
    74,825.34/112,242.87 = 22,230.42/x
  3. Step 3: Cross multiply
    74,825.34x = 112,242.87 × 22,230.42
  4. Step 4: Simplify right side
    74,825.34x = 2,495,206,142.11
  5. Step 5: Solve for x
    x = 2,495,206,142.11/74,825.34
  6. Step 6: Final answer
    x = 33,347.07

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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.