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Finding the Fourth Proportional to 80,552.72, 120,878.95 and 46,834.60

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Solution

The fourth proportional to 80,552.72, 120,878.95 and 46,834.60 is: 70,280.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,552.72 : 120,878.95 = 46,834.60 : x
  2. Step 2: Convert to fraction form
    80,552.72/120,878.95 = 46,834.60/x
  3. Step 3: Cross multiply
    80,552.72x = 120,878.95 × 46,834.60
  4. Step 4: Simplify right side
    80,552.72x = 5,661,316,852.39
  5. Step 5: Solve for x
    x = 5,661,316,852.39/80,552.72
  6. Step 6: Final answer
    x = 70,280.89

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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.