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Finding the Fourth Proportional to 61,117.60, 84,184.48 and 43,181.44

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Solution

The fourth proportional to 61,117.60, 84,184.48 and 43,181.44 is: 59,478.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,117.60 : 84,184.48 = 43,181.44 : x
  2. Step 2: Convert to fraction form
    61,117.60/84,184.48 = 43,181.44/x
  3. Step 3: Cross multiply
    61,117.60x = 84,184.48 × 43,181.44
  4. Step 4: Simplify right side
    61,117.60x = 3,635,207,072.05
  5. Step 5: Solve for x
    x = 3,635,207,072.05/61,117.60
  6. Step 6: Final answer
    x = 59,478.89

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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.