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Finding the Fourth Proportional to 161,382.39, 241,906.86 and 61,515.78

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Solution

The fourth proportional to 161,382.39, 241,906.86 and 61,515.78 is: 92,210.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,382.39 : 241,906.86 = 61,515.78 : x
  2. Step 2: Convert to fraction form
    161,382.39/241,906.86 = 61,515.78/x
  3. Step 3: Cross multiply
    161,382.39x = 241,906.86 × 61,515.78
  4. Step 4: Simplify right side
    161,382.39x = 14,881,089,180.25
  5. Step 5: Solve for x
    x = 14,881,089,180.25/161,382.39
  6. Step 6: Final answer
    x = 92,210.12

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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.