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Finding the Fourth Proportional to 84,708.80, 116,896.04 and 48,407.94

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Solution

The fourth proportional to 84,708.80, 116,896.04 and 48,407.94 is: 66,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,708.80 : 116,896.04 = 48,407.94 : x
  2. Step 2: Convert to fraction form
    84,708.80/116,896.04 = 48,407.94/x
  3. Step 3: Cross multiply
    84,708.80x = 116,896.04 × 48,407.94
  4. Step 4: Simplify right side
    84,708.80x = 5,658,696,248.52
  5. Step 5: Solve for x
    x = 5,658,696,248.52/84,708.80
  6. Step 6: Final answer
    x = 66,801.76

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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.