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Finding the Fourth Proportional to 269,215.30, 403,790.55 and 111,427.30

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Solution

The fourth proportional to 269,215.30, 403,790.55 and 111,427.30 is: 167,127.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,215.30 : 403,790.55 = 111,427.30 : x
  2. Step 2: Convert to fraction form
    269,215.30/403,790.55 = 111,427.30/x
  3. Step 3: Cross multiply
    269,215.30x = 403,790.55 × 111,427.30
  4. Step 4: Simplify right side
    269,215.30x = 44,993,290,752.02
  5. Step 5: Solve for x
    x = 44,993,290,752.02/269,215.30
  6. Step 6: Final answer
    x = 167,127.54

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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.