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Finding the Fourth Proportional to 143,181, 214,771.97 and 48,411.95

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Solution

The fourth proportional to 143,181, 214,771.97 and 48,411.95 is: 72,618.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,181 : 214,771.97 = 48,411.95 : x
  2. Step 2: Convert to fraction form
    143,181/214,771.97 = 48,411.95/x
  3. Step 3: Cross multiply
    143,181x = 214,771.97 × 48,411.95
  4. Step 4: Simplify right side
    143,181x = 10,397,528,920.21
  5. Step 5: Solve for x
    x = 10,397,528,920.21/143,181
  6. Step 6: Final answer
    x = 72,618.08

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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.