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Finding the Fourth Proportional to 88,709.10, 133,063.65 and 26,379.60

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Solution

The fourth proportional to 88,709.10, 133,063.65 and 26,379.60 is: 39,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,709.10 : 133,063.65 = 26,379.60 : x
  2. Step 2: Convert to fraction form
    88,709.10/133,063.65 = 26,379.60/x
  3. Step 3: Cross multiply
    88,709.10x = 133,063.65 × 26,379.60
  4. Step 4: Simplify right side
    88,709.10x = 3,510,165,861.54
  5. Step 5: Solve for x
    x = 3,510,165,861.54/88,709.10
  6. Step 6: Final answer
    x = 39,569.40

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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.