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Finding the Fourth Proportional to 97,895.99, 146,696.37 and 72,818.39

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Solution

The fourth proportional to 97,895.99, 146,696.37 and 72,818.39 is: 109,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,895.99 : 146,696.37 = 72,818.39 : x
  2. Step 2: Convert to fraction form
    97,895.99/146,696.37 = 72,818.39/x
  3. Step 3: Cross multiply
    97,895.99x = 146,696.37 × 72,818.39
  4. Step 4: Simplify right side
    97,895.99x = 10,682,193,575.92
  5. Step 5: Solve for x
    x = 10,682,193,575.92/97,895.99
  6. Step 6: Final answer
    x = 109,117.78

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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.