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Finding the Fourth Proportional to 79,671.60, 119,479.86 and 35,329.41

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Solution

The fourth proportional to 79,671.60, 119,479.86 and 35,329.41 is: 52,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,671.60 : 119,479.86 = 35,329.41 : x
  2. Step 2: Convert to fraction form
    79,671.60/119,479.86 = 35,329.41/x
  3. Step 3: Cross multiply
    79,671.60x = 119,479.86 × 35,329.41
  4. Step 4: Simplify right side
    79,671.60x = 4,221,152,960.68
  5. Step 5: Solve for x
    x = 4,221,152,960.68/79,671.60
  6. Step 6: Final answer
    x = 52,981.90

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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.