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Finding the Fourth Proportional to 161,336.43, 222,649.65 and 88,742.39

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Solution

The fourth proportional to 161,336.43, 222,649.65 and 88,742.39 is: 122,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,336.43 : 222,649.65 = 88,742.39 : x
  2. Step 2: Convert to fraction form
    161,336.43/222,649.65 = 88,742.39/x
  3. Step 3: Cross multiply
    161,336.43x = 222,649.65 × 88,742.39
  4. Step 4: Simplify right side
    161,336.43x = 19,758,460,960.42
  5. Step 5: Solve for x
    x = 19,758,460,960.42/161,336.43
  6. Step 6: Final answer
    x = 122,467.45

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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.