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Finding the Fourth Proportional to 148,392.50, 204,751.44 and 87,936.53

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Solution

The fourth proportional to 148,392.50, 204,751.44 and 87,936.53 is: 121,334.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,392.50 : 204,751.44 = 87,936.53 : x
  2. Step 2: Convert to fraction form
    148,392.50/204,751.44 = 87,936.53/x
  3. Step 3: Cross multiply
    148,392.50x = 204,751.44 × 87,936.53
  4. Step 4: Simplify right side
    148,392.50x = 18,005,130,122.35
  5. Step 5: Solve for x
    x = 18,005,130,122.35/148,392.50
  6. Step 6: Final answer
    x = 121,334.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.