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Finding the Fourth Proportional to 159,854.54, 220,606.61 and 91,893.51

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Solution

The fourth proportional to 159,854.54, 220,606.61 and 91,893.51 is: 126,817.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,854.54 : 220,606.61 = 91,893.51 : x
  2. Step 2: Convert to fraction form
    159,854.54/220,606.61 = 91,893.51/x
  3. Step 3: Cross multiply
    159,854.54x = 220,606.61 × 91,893.51
  4. Step 4: Simplify right side
    159,854.54x = 20,272,315,262.63
  5. Step 5: Solve for x
    x = 20,272,315,262.63/159,854.54
  6. Step 6: Final answer
    x = 126,817.27

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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.