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Finding the Fourth Proportional to 106,615.68, 160,021.44 and 54,062.88

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Solution

The fourth proportional to 106,615.68, 160,021.44 and 54,062.88 is: 81,143.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,615.68 : 160,021.44 = 54,062.88 : x
  2. Step 2: Convert to fraction form
    106,615.68/160,021.44 = 54,062.88/x
  3. Step 3: Cross multiply
    106,615.68x = 160,021.44 × 54,062.88
  4. Step 4: Simplify right side
    106,615.68x = 8,651,219,908.15
  5. Step 5: Solve for x
    x = 8,651,219,908.15/106,615.68
  6. Step 6: Final answer
    x = 81,143.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.