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Finding the Fourth Proportional to 109,400.45, 150,972.75 and 59,099.45

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Solution

The fourth proportional to 109,400.45, 150,972.75 and 59,099.45 is: 81,557.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,400.45 : 150,972.75 = 59,099.45 : x
  2. Step 2: Convert to fraction form
    109,400.45/150,972.75 = 59,099.45/x
  3. Step 3: Cross multiply
    109,400.45x = 150,972.75 × 59,099.45
  4. Step 4: Simplify right side
    109,400.45x = 8,922,405,735.12
  5. Step 5: Solve for x
    x = 8,922,405,735.12/109,400.45
  6. Step 6: Final answer
    x = 81,557.31

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1.5x scale

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.