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Finding the Fourth Proportional to 112,017.10, 167,916.30 and 100,207.30

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Solution

The fourth proportional to 112,017.10, 167,916.30 and 100,207.30 is: 150,213.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,017.10 : 167,916.30 = 100,207.30 : x
  2. Step 2: Convert to fraction form
    112,017.10/167,916.30 = 100,207.30/x
  3. Step 3: Cross multiply
    112,017.10x = 167,916.30 × 100,207.30
  4. Step 4: Simplify right side
    112,017.10x = 16,826,439,048.99
  5. Step 5: Solve for x
    x = 16,826,439,048.99/112,017.10
  6. Step 6: Final answer
    x = 150,213.13

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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.