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Finding the Fourth Proportional to 85,894.08, 118,536.84 and 50,078.04

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Solution

The fourth proportional to 85,894.08, 118,536.84 and 50,078.04 is: 69,109.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,894.08 : 118,536.84 = 50,078.04 : x
  2. Step 2: Convert to fraction form
    85,894.08/118,536.84 = 50,078.04/x
  3. Step 3: Cross multiply
    85,894.08x = 118,536.84 × 50,078.04
  4. Step 4: Simplify right side
    85,894.08x = 5,936,092,614.99
  5. Step 5: Solve for x
    x = 5,936,092,614.99/85,894.08
  6. Step 6: Final answer
    x = 69,109.45

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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.