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Finding the Fourth Proportional to 89,673.72, 134,362.94 and 62,658.80

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Solution

The fourth proportional to 89,673.72, 134,362.94 and 62,658.80 is: 93,885.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,673.72 : 134,362.94 = 62,658.80 : x
  2. Step 2: Convert to fraction form
    89,673.72/134,362.94 = 62,658.80/x
  3. Step 3: Cross multiply
    89,673.72x = 134,362.94 × 62,658.80
  4. Step 4: Simplify right side
    89,673.72x = 8,419,019,599.76
  5. Step 5: Solve for x
    x = 8,419,019,599.76/89,673.72
  6. Step 6: Final answer
    x = 93,885.03

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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.