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Finding the Fourth Proportional to 84,530.67, 116,625.87 and 48,715.79

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Solution

The fourth proportional to 84,530.67, 116,625.87 and 48,715.79 is: 67,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,530.67 : 116,625.87 = 48,715.79 : x
  2. Step 2: Convert to fraction form
    84,530.67/116,625.87 = 48,715.79/x
  3. Step 3: Cross multiply
    84,530.67x = 116,625.87 × 48,715.79
  4. Step 4: Simplify right side
    84,530.67x = 5,681,520,808.36
  5. Step 5: Solve for x
    x = 5,681,520,808.36/84,530.67
  6. Step 6: Final answer
    x = 67,212.54

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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.