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Finding the Fourth Proportional to 103,934.33, 155,511.47 and 61,659.62

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Solution

The fourth proportional to 103,934.33, 155,511.47 and 61,659.62 is: 92,258.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,934.33 : 155,511.47 = 61,659.62 : x
  2. Step 2: Convert to fraction form
    103,934.33/155,511.47 = 61,659.62/x
  3. Step 3: Cross multiply
    103,934.33x = 155,511.47 × 61,659.62
  4. Step 4: Simplify right side
    103,934.33x = 9,588,777,059.99
  5. Step 5: Solve for x
    x = 9,588,777,059.99/103,934.33
  6. Step 6: Final answer
    x = 92,258.04

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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.