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Finding the Fourth Proportional to 88,861.90, 133,033.65 and 79,530.70

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Solution

The fourth proportional to 88,861.90, 133,033.65 and 79,530.70 is: 119,064.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,861.90 : 133,033.65 = 79,530.70 : x
  2. Step 2: Convert to fraction form
    88,861.90/133,033.65 = 79,530.70/x
  3. Step 3: Cross multiply
    88,861.90x = 133,033.65 × 79,530.70
  4. Step 4: Simplify right side
    88,861.90x = 10,580,259,308.06
  5. Step 5: Solve for x
    x = 10,580,259,308.06/88,861.90
  6. Step 6: Final answer
    x = 119,064.07

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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.