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Finding the Fourth Proportional to 84,107.50, 116,067.42 and 45,866.92

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Solution

The fourth proportional to 84,107.50, 116,067.42 and 45,866.92 is: 63,295.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,107.50 : 116,067.42 = 45,866.92 : x
  2. Step 2: Convert to fraction form
    84,107.50/116,067.42 = 45,866.92/x
  3. Step 3: Cross multiply
    84,107.50x = 116,067.42 × 45,866.92
  4. Step 4: Simplify right side
    84,107.50x = 5,323,655,067.75
  5. Step 5: Solve for x
    x = 5,323,655,067.75/84,107.50
  6. Step 6: Final answer
    x = 63,295.84

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Double scale
Find fourth proportional to 84,108.50, 116,068.80 and 45,867.92
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1.5x scale

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.