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Finding the Fourth Proportional to 89,872.40, 134,835.96 and 63,627.92

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Solution

The fourth proportional to 89,872.40, 134,835.96 and 63,627.92 is: 95,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,872.40 : 134,835.96 = 63,627.92 : x
  2. Step 2: Convert to fraction form
    89,872.40/134,835.96 = 63,627.92/x
  3. Step 3: Cross multiply
    89,872.40x = 134,835.96 × 63,627.92
  4. Step 4: Simplify right side
    89,872.40x = 8,579,331,676.00
  5. Step 5: Solve for x
    x = 8,579,331,676.00/89,872.40
  6. Step 6: Final answer
    x = 95,461.25

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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.