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Finding the Fourth Proportional to 274,073.93, 411,155.22 and 84,489.94

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Solution

The fourth proportional to 274,073.93, 411,155.22 and 84,489.94 is: 126,748.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,073.93 : 411,155.22 = 84,489.94 : x
  2. Step 2: Convert to fraction form
    274,073.93/411,155.22 = 84,489.94/x
  3. Step 3: Cross multiply
    274,073.93x = 411,155.22 × 84,489.94
  4. Step 4: Simplify right side
    274,073.93x = 34,738,480,810.14
  5. Step 5: Solve for x
    x = 34,738,480,810.14/274,073.93
  6. Step 6: Final answer
    x = 126,748.58

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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.