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Finding the Fourth Proportional to 88,725.20, 133,087.80 and 44,358.80

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Solution

The fourth proportional to 88,725.20, 133,087.80 and 44,358.80 is: 66,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,725.20 : 133,087.80 = 44,358.80 : x
  2. Step 2: Convert to fraction form
    88,725.20/133,087.80 = 44,358.80/x
  3. Step 3: Cross multiply
    88,725.20x = 133,087.80 × 44,358.80
  4. Step 4: Simplify right side
    88,725.20x = 5,903,615,102.64
  5. Step 5: Solve for x
    x = 5,903,615,102.64/88,725.20
  6. Step 6: Final answer
    x = 66,538.20

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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.