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Finding the Fourth Proportional to 61,181.74, 91,761.66 and 16,203.40

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Solution

The fourth proportional to 61,181.74, 91,761.66 and 16,203.40 is: 24,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,181.74 : 91,761.66 = 16,203.40 : x
  2. Step 2: Convert to fraction form
    61,181.74/91,761.66 = 16,203.40/x
  3. Step 3: Cross multiply
    61,181.74x = 91,761.66 × 16,203.40
  4. Step 4: Simplify right side
    61,181.74x = 1,486,850,881.64
  5. Step 5: Solve for x
    x = 1,486,850,881.64/61,181.74
  6. Step 6: Final answer
    x = 24,302.20

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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.