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Finding the Fourth Proportional to 172,635.56, 238,259.78 and 97,198.76

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Solution

The fourth proportional to 172,635.56, 238,259.78 and 97,198.76 is: 134,147.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,635.56 : 238,259.78 = 97,198.76 : x
  2. Step 2: Convert to fraction form
    172,635.56/238,259.78 = 97,198.76/x
  3. Step 3: Cross multiply
    172,635.56x = 238,259.78 × 97,198.76
  4. Step 4: Simplify right side
    172,635.56x = 23,158,555,173.87
  5. Step 5: Solve for x
    x = 23,158,555,173.87/172,635.56
  6. Step 6: Final answer
    x = 134,147.07

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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.