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Finding the Fourth Proportional to 274,712.45, 412,115.20 and 94,749.02

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Solution

The fourth proportional to 274,712.45, 412,115.20 and 94,749.02 is: 142,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,712.45 : 412,115.20 = 94,749.02 : x
  2. Step 2: Convert to fraction form
    274,712.45/412,115.20 = 94,749.02/x
  3. Step 3: Cross multiply
    274,712.45x = 412,115.20 × 94,749.02
  4. Step 4: Simplify right side
    274,712.45x = 39,047,509,266.53
  5. Step 5: Solve for x
    x = 39,047,509,266.53/274,712.45
  6. Step 6: Final answer
    x = 142,139.57

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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.