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Finding the Fourth Proportional to 83,136.64, 124,710.72 and 23,969.92

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Solution

The fourth proportional to 83,136.64, 124,710.72 and 23,969.92 is: 35,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,136.64 : 124,710.72 = 23,969.92 : x
  2. Step 2: Convert to fraction form
    83,136.64/124,710.72 = 23,969.92/x
  3. Step 3: Cross multiply
    83,136.64x = 124,710.72 × 23,969.92
  4. Step 4: Simplify right side
    83,136.64x = 2,989,305,981.54
  5. Step 5: Solve for x
    x = 2,989,305,981.54/83,136.64
  6. Step 6: Final answer
    x = 35,956.54

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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.