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Finding the Fourth Proportional to 161,173.59, 222,326.90 and 100,639.14

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Solution

The fourth proportional to 161,173.59, 222,326.90 and 100,639.14 is: 138,824.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,173.59 : 222,326.90 = 100,639.14 : x
  2. Step 2: Convert to fraction form
    161,173.59/222,326.90 = 100,639.14/x
  3. Step 3: Cross multiply
    161,173.59x = 222,326.90 × 100,639.14
  4. Step 4: Simplify right side
    161,173.59x = 22,374,787,511.67
  5. Step 5: Solve for x
    x = 22,374,787,511.67/161,173.59
  6. Step 6: Final answer
    x = 138,824.16

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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.