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Finding the Fourth Proportional to 215,820.94, 323,760.95 and 73,628.04

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Solution

The fourth proportional to 215,820.94, 323,760.95 and 73,628.04 is: 110,452.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,820.94 : 323,760.95 = 73,628.04 : x
  2. Step 2: Convert to fraction form
    215,820.94/323,760.95 = 73,628.04/x
  3. Step 3: Cross multiply
    215,820.94x = 323,760.95 × 73,628.04
  4. Step 4: Simplify right side
    215,820.94x = 23,837,883,477.95
  5. Step 5: Solve for x
    x = 23,837,883,477.95/215,820.94
  6. Step 6: Final answer
    x = 110,452.13

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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.