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Finding the Fourth Proportional to 61,753.07, 85,219.31 and 33,458.74

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Solution

The fourth proportional to 61,753.07, 85,219.31 and 33,458.74 is: 46,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,753.07 : 85,219.31 = 33,458.74 : x
  2. Step 2: Convert to fraction form
    61,753.07/85,219.31 = 33,458.74/x
  3. Step 3: Cross multiply
    61,753.07x = 85,219.31 × 33,458.74
  4. Step 4: Simplify right side
    61,753.07x = 2,851,330,736.27
  5. Step 5: Solve for x
    x = 2,851,330,736.27/61,753.07
  6. Step 6: Final answer
    x = 46,173.10

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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.