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Finding the Fourth Proportional to 371,847.46, 513,153.48 and 202,081.60

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Solution

The fourth proportional to 371,847.46, 513,153.48 and 202,081.60 is: 278,874.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,847.46 : 513,153.48 = 202,081.60 : x
  2. Step 2: Convert to fraction form
    371,847.46/513,153.48 = 202,081.60/x
  3. Step 3: Cross multiply
    371,847.46x = 513,153.48 × 202,081.60
  4. Step 4: Simplify right side
    371,847.46x = 103,698,876,283.97
  5. Step 5: Solve for x
    x = 103,698,876,283.97/371,847.46
  6. Step 6: Final answer
    x = 278,874.77

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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.