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Finding the Fourth Proportional to 103,992.46, 155,988.66 and 33,871.76

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Solution

The fourth proportional to 103,992.46, 155,988.66 and 33,871.76 is: 50,807.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,992.46 : 155,988.66 = 33,871.76 : x
  2. Step 2: Convert to fraction form
    103,992.46/155,988.66 = 33,871.76/x
  3. Step 3: Cross multiply
    103,992.46x = 155,988.66 × 33,871.76
  4. Step 4: Simplify right side
    103,992.46x = 5,283,610,454.24
  5. Step 5: Solve for x
    x = 5,283,610,454.24/103,992.46
  6. Step 6: Final answer
    x = 50,807.63

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1.5x scale

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.