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Finding the Fourth Proportional to 201,498.18, 302,236.32 and 61,245.87

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Solution

The fourth proportional to 201,498.18, 302,236.32 and 61,245.87 is: 91,865.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,498.18 : 302,236.32 = 61,245.87 : x
  2. Step 2: Convert to fraction form
    201,498.18/302,236.32 = 61,245.87/x
  3. Step 3: Cross multiply
    201,498.18x = 302,236.32 × 61,245.87
  4. Step 4: Simplify right side
    201,498.18x = 18,510,726,364.00
  5. Step 5: Solve for x
    x = 18,510,726,364.00/201,498.18
  6. Step 6: Final answer
    x = 91,865.48

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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.