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Finding the Fourth Proportional to 269,211.30, 403,784.55 and 111,423.30

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Solution

The fourth proportional to 269,211.30, 403,784.55 and 111,423.30 is: 167,121.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,211.30 : 403,784.55 = 111,423.30 : x
  2. Step 2: Convert to fraction form
    269,211.30/403,784.55 = 111,423.30/x
  3. Step 3: Cross multiply
    269,211.30x = 403,784.55 × 111,423.30
  4. Step 4: Simplify right side
    269,211.30x = 44,991,007,050.02
  5. Step 5: Solve for x
    x = 44,991,007,050.02/269,211.30
  6. Step 6: Final answer
    x = 167,121.54

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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.