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Finding the Fourth Proportional to 101,774.58, 140,445.56 and 61,481.30

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Solution

The fourth proportional to 101,774.58, 140,445.56 and 61,481.30 is: 84,842.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,774.58 : 140,445.56 = 61,481.30 : x
  2. Step 2: Convert to fraction form
    101,774.58/140,445.56 = 61,481.30/x
  3. Step 3: Cross multiply
    101,774.58x = 140,445.56 × 61,481.30
  4. Step 4: Simplify right side
    101,774.58x = 8,634,775,059.50
  5. Step 5: Solve for x
    x = 8,634,775,059.50/101,774.58
  6. Step 6: Final answer
    x = 84,842.16

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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.