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Finding the Fourth Proportional to 112,015.10, 167,913.30 and 100,205.30

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Solution

The fourth proportional to 112,015.10, 167,913.30 and 100,205.30 is: 150,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,015.10 : 167,913.30 = 100,205.30 : x
  2. Step 2: Convert to fraction form
    112,015.10/167,913.30 = 100,205.30/x
  3. Step 3: Cross multiply
    112,015.10x = 167,913.30 × 100,205.30
  4. Step 4: Simplify right side
    112,015.10x = 16,825,802,600.49
  5. Step 5: Solve for x
    x = 16,825,802,600.49/112,015.10
  6. Step 6: Final answer
    x = 150,210.13

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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.