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Finding the Fourth Proportional to 131,751.16, 197,627.01 and 61,679.68

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Solution

The fourth proportional to 131,751.16, 197,627.01 and 61,679.68 is: 92,519.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,751.16 : 197,627.01 = 61,679.68 : x
  2. Step 2: Convert to fraction form
    131,751.16/197,627.01 = 61,679.68/x
  3. Step 3: Cross multiply
    131,751.16x = 197,627.01 × 61,679.68
  4. Step 4: Simplify right side
    131,751.16x = 12,189,570,736.16
  5. Step 5: Solve for x
    x = 12,189,570,736.16/131,751.16
  6. Step 6: Final answer
    x = 92,519.65

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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.