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Finding the Fourth Proportional to 75,885.84, 104,625.10 and 62,223.54

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Solution

The fourth proportional to 75,885.84, 104,625.10 and 62,223.54 is: 85,788.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,885.84 : 104,625.10 = 62,223.54 : x
  2. Step 2: Convert to fraction form
    75,885.84/104,625.10 = 62,223.54/x
  3. Step 3: Cross multiply
    75,885.84x = 104,625.10 × 62,223.54
  4. Step 4: Simplify right side
    75,885.84x = 6,510,144,094.85
  5. Step 5: Solve for x
    x = 6,510,144,094.85/75,885.84
  6. Step 6: Final answer
    x = 85,788.65

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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.