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Finding the Fourth Proportional to 99,181, 148,771.52 and 25,309

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Solution

The fourth proportional to 99,181, 148,771.52 and 25,309 is: 37,963.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,181 : 148,771.52 = 25,309 : x
  2. Step 2: Convert to fraction form
    99,181/148,771.52 = 25,309/x
  3. Step 3: Cross multiply
    99,181x = 148,771.52 × 25,309
  4. Step 4: Simplify right side
    99,181x = 3,765,258,399.68
  5. Step 5: Solve for x
    x = 3,765,258,399.68/99,181
  6. Step 6: Final answer
    x = 37,963.51

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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.