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Finding the Fourth Proportional to 197,647.76, 272,751.24 and 112,766.24

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Solution

The fourth proportional to 197,647.76, 272,751.24 and 112,766.24 is: 155,615.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,647.76 : 272,751.24 = 112,766.24 : x
  2. Step 2: Convert to fraction form
    197,647.76/272,751.24 = 112,766.24/x
  3. Step 3: Cross multiply
    197,647.76x = 272,751.24 × 112,766.24
  4. Step 4: Simplify right side
    197,647.76x = 30,757,131,790.14
  5. Step 5: Solve for x
    x = 30,757,131,790.14/197,647.76
  6. Step 6: Final answer
    x = 155,615.89

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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.