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Finding the Fourth Proportional to 111,865.80, 167,798.70 and 62,099.40

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Solution

The fourth proportional to 111,865.80, 167,798.70 and 62,099.40 is: 93,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,865.80 : 167,798.70 = 62,099.40 : x
  2. Step 2: Convert to fraction form
    111,865.80/167,798.70 = 62,099.40/x
  3. Step 3: Cross multiply
    111,865.80x = 167,798.70 × 62,099.40
  4. Step 4: Simplify right side
    111,865.80x = 10,420,198,590.78
  5. Step 5: Solve for x
    x = 10,420,198,590.78/111,865.80
  6. Step 6: Final answer
    x = 93,149.10

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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.