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Finding the Fourth Proportional to 161,683.80, 242,517.51 and 61,836.33

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Solution

The fourth proportional to 161,683.80, 242,517.51 and 61,836.33 is: 92,751.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,683.80 : 242,517.51 = 61,836.33 : x
  2. Step 2: Convert to fraction form
    161,683.80/242,517.51 = 61,836.33/x
  3. Step 3: Cross multiply
    161,683.80x = 242,517.51 × 61,836.33
  4. Step 4: Simplify right side
    161,683.80x = 14,996,392,779.14
  5. Step 5: Solve for x
    x = 14,996,392,779.14/161,683.80
  6. Step 6: Final answer
    x = 92,751.36

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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.