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Finding the Fourth Proportional to 112,035.70, 168,053.55 and 100,371.70

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Solution

The fourth proportional to 112,035.70, 168,053.55 and 100,371.70 is: 150,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,035.70 : 168,053.55 = 100,371.70 : x
  2. Step 2: Convert to fraction form
    112,035.70/168,053.55 = 100,371.70/x
  3. Step 3: Cross multiply
    112,035.70x = 168,053.55 × 100,371.70
  4. Step 4: Simplify right side
    112,035.70x = 16,867,820,504.54
  5. Step 5: Solve for x
    x = 16,867,820,504.54/112,035.70
  6. Step 6: Final answer
    x = 150,557.55

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1.5x scale

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.