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Finding the Fourth Proportional to 61,674.88, 85,111.20 and 34,822.96

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Solution

The fourth proportional to 61,674.88, 85,111.20 and 34,822.96 is: 48,055.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,674.88 : 85,111.20 = 34,822.96 : x
  2. Step 2: Convert to fraction form
    61,674.88/85,111.20 = 34,822.96/x
  3. Step 3: Cross multiply
    61,674.88x = 85,111.20 × 34,822.96
  4. Step 4: Simplify right side
    61,674.88x = 2,963,823,913.15
  5. Step 5: Solve for x
    x = 2,963,823,913.15/61,674.88
  6. Step 6: Final answer
    x = 48,055.61

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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.