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Finding the Fourth Proportional to 74,669.30, 112,003.74 and 61,493.84

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Solution

The fourth proportional to 74,669.30, 112,003.74 and 61,493.84 is: 92,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,669.30 : 112,003.74 = 61,493.84 : x
  2. Step 2: Convert to fraction form
    74,669.30/112,003.74 = 61,493.84/x
  3. Step 3: Cross multiply
    74,669.30x = 112,003.74 × 61,493.84
  4. Step 4: Simplify right side
    74,669.30x = 6,887,540,066.96
  5. Step 5: Solve for x
    x = 6,887,540,066.96/74,669.30
  6. Step 6: Final answer
    x = 92,240.59

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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.