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Finding the Fourth Proportional to 274,749.99, 411,792.75 and 141,557.55

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Solution

The fourth proportional to 274,749.99, 411,792.75 and 141,557.55 is: 212,165.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,749.99 : 411,792.75 = 141,557.55 : x
  2. Step 2: Convert to fraction form
    274,749.99/411,792.75 = 141,557.55/x
  3. Step 3: Cross multiply
    274,749.99x = 411,792.75 × 141,557.55
  4. Step 4: Simplify right side
    274,749.99x = 58,292,372,797.76
  5. Step 5: Solve for x
    x = 58,292,372,797.76/274,749.99
  6. Step 6: Final answer
    x = 212,165.15

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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.