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Finding the Fourth Proportional to 89,725.68, 134,588.16 and 33,570

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Solution

The fourth proportional to 89,725.68, 134,588.16 and 33,570 is: 50,354.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,725.68 : 134,588.16 = 33,570 : x
  2. Step 2: Convert to fraction form
    89,725.68/134,588.16 = 33,570/x
  3. Step 3: Cross multiply
    89,725.68x = 134,588.16 × 33,570
  4. Step 4: Simplify right side
    89,725.68x = 4,518,124,531.20
  5. Step 5: Solve for x
    x = 4,518,124,531.20/89,725.68
  6. Step 6: Final answer
    x = 50,354.87

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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.