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Finding the Fourth Proportional to 201,859.92, 302,837.76 and 61,609.68

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Solution

The fourth proportional to 201,859.92, 302,837.76 and 61,609.68 is: 92,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,859.92 : 302,837.76 = 61,609.68 : x
  2. Step 2: Convert to fraction form
    201,859.92/302,837.76 = 61,609.68/x
  3. Step 3: Cross multiply
    201,859.92x = 302,837.76 × 61,609.68
  4. Step 4: Simplify right side
    201,859.92x = 18,657,737,485.52
  5. Step 5: Solve for x
    x = 18,657,737,485.52/201,859.92
  6. Step 6: Final answer
    x = 92,429.13

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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.