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Finding the Fourth Proportional to 112,995.77, 155,936.51 and 62,005.52

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Solution

The fourth proportional to 112,995.77, 155,936.51 and 62,005.52 is: 85,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,995.77 : 155,936.51 = 62,005.52 : x
  2. Step 2: Convert to fraction form
    112,995.77/155,936.51 = 62,005.52/x
  3. Step 3: Cross multiply
    112,995.77x = 155,936.51 × 62,005.52
  4. Step 4: Simplify right side
    112,995.77x = 9,668,923,299.83
  5. Step 5: Solve for x
    x = 9,668,923,299.83/112,995.77
  6. Step 6: Final answer
    x = 85,568.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.