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Finding the Fourth Proportional to 124,188, 186,299.52 and 39,919.92

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Solution

The fourth proportional to 124,188, 186,299.52 and 39,919.92 is: 59,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,188 : 186,299.52 = 39,919.92 : x
  2. Step 2: Convert to fraction form
    124,188/186,299.52 = 39,919.92/x
  3. Step 3: Cross multiply
    124,188x = 186,299.52 × 39,919.92
  4. Step 4: Simplify right side
    124,188x = 7,437,061,934.44
  5. Step 5: Solve for x
    x = 7,437,061,934.44/124,188
  6. Step 6: Final answer
    x = 59,885.51

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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.