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Finding the Fourth Proportional to 84,611.94, 116,749.65 and 48,296.79

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Solution

The fourth proportional to 84,611.94, 116,749.65 and 48,296.79 is: 66,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,611.94 : 116,749.65 = 48,296.79 : x
  2. Step 2: Convert to fraction form
    84,611.94/116,749.65 = 48,296.79/x
  3. Step 3: Cross multiply
    84,611.94x = 116,749.65 × 48,296.79
  4. Step 4: Simplify right side
    84,611.94x = 5,638,633,328.62
  5. Step 5: Solve for x
    x = 5,638,633,328.62/84,611.94
  6. Step 6: Final answer
    x = 66,641.11

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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.