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Finding the Fourth Proportional to 108,559.76, 162,842.82 and 92,664.56

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Solution

The fourth proportional to 108,559.76, 162,842.82 and 92,664.56 is: 138,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,559.76 : 162,842.82 = 92,664.56 : x
  2. Step 2: Convert to fraction form
    108,559.76/162,842.82 = 92,664.56/x
  3. Step 3: Cross multiply
    108,559.76x = 162,842.82 × 92,664.56
  4. Step 4: Simplify right side
    108,559.76x = 15,089,758,264.46
  5. Step 5: Solve for x
    x = 15,089,758,264.46/108,559.76
  6. Step 6: Final answer
    x = 138,999.55

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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.