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Finding the Fourth Proportional to 90,616.80, 135,871.48 and 27,417.76

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Solution

The fourth proportional to 90,616.80, 135,871.48 and 27,417.76 is: 41,110.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,616.80 : 135,871.48 = 27,417.76 : x
  2. Step 2: Convert to fraction form
    90,616.80/135,871.48 = 27,417.76/x
  3. Step 3: Cross multiply
    90,616.80x = 135,871.48 × 27,417.76
  4. Step 4: Simplify right side
    90,616.80x = 3,725,291,629.48
  5. Step 5: Solve for x
    x = 3,725,291,629.48/90,616.80
  6. Step 6: Final answer
    x = 41,110.39

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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.