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Finding the Fourth Proportional to 89,966.40, 135,046.80 and 50,600.40

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Solution

The fourth proportional to 89,966.40, 135,046.80 and 50,600.40 is: 75,955.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,966.40 : 135,046.80 = 50,600.40 : x
  2. Step 2: Convert to fraction form
    89,966.40/135,046.80 = 50,600.40/x
  3. Step 3: Cross multiply
    89,966.40x = 135,046.80 × 50,600.40
  4. Step 4: Simplify right side
    89,966.40x = 6,833,422,098.72
  5. Step 5: Solve for x
    x = 6,833,422,098.72/89,966.40
  6. Step 6: Final answer
    x = 75,955.27

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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.