Home / 209,622.18-289,376.10-123,554.04

Finding the Fourth Proportional to 209,622.18, 289,376.10 and 123,554.04

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Solution

The fourth proportional to 209,622.18, 289,376.10 and 123,554.04 is: 170,562.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,622.18 : 289,376.10 = 123,554.04 : x
  2. Step 2: Convert to fraction form
    209,622.18/289,376.10 = 123,554.04/x
  3. Step 3: Cross multiply
    209,622.18x = 289,376.10 × 123,554.04
  4. Step 4: Simplify right side
    209,622.18x = 35,753,586,234.44
  5. Step 5: Solve for x
    x = 35,753,586,234.44/209,622.18
  6. Step 6: Final answer
    x = 170,562.04

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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.