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Finding the Fourth Proportional to 150,410.10, 207,511.02 and 89,982.48

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Solution

The fourth proportional to 150,410.10, 207,511.02 and 89,982.48 is: 124,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,410.10 : 207,511.02 = 89,982.48 : x
  2. Step 2: Convert to fraction form
    150,410.10/207,511.02 = 89,982.48/x
  3. Step 3: Cross multiply
    150,410.10x = 207,511.02 × 89,982.48
  4. Step 4: Simplify right side
    150,410.10x = 18,672,356,206.93
  5. Step 5: Solve for x
    x = 18,672,356,206.93/150,410.10
  6. Step 6: Final answer
    x = 124,142.97

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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.