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Finding the Fourth Proportional to 103,611.86, 155,417.79 and 33,491.17

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Solution

The fourth proportional to 103,611.86, 155,417.79 and 33,491.17 is: 50,236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,611.86 : 155,417.79 = 33,491.17 : x
  2. Step 2: Convert to fraction form
    103,611.86/155,417.79 = 33,491.17/x
  3. Step 3: Cross multiply
    103,611.86x = 155,417.79 × 33,491.17
  4. Step 4: Simplify right side
    103,611.86x = 5,205,124,014.46
  5. Step 5: Solve for x
    x = 5,205,124,014.46/103,611.86
  6. Step 6: Final answer
    x = 50,236.76

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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.