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Finding the Fourth Proportional to 161,191.68, 222,427.94 and 100,768.98

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Solution

The fourth proportional to 161,191.68, 222,427.94 and 100,768.98 is: 139,050.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,191.68 : 222,427.94 = 100,768.98 : x
  2. Step 2: Convert to fraction form
    161,191.68/222,427.94 = 100,768.98/x
  3. Step 3: Cross multiply
    161,191.68x = 222,427.94 × 100,768.98
  4. Step 4: Simplify right side
    161,191.68x = 22,413,836,889.22
  5. Step 5: Solve for x
    x = 22,413,836,889.22/161,191.68
  6. Step 6: Final answer
    x = 139,050.83

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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.