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Finding the Fourth Proportional to 307,791.83, 424,774.13 and 171,852.50

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Solution

The fourth proportional to 307,791.83, 424,774.13 and 171,852.50 is: 237,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,791.83 : 424,774.13 = 171,852.50 : x
  2. Step 2: Convert to fraction form
    307,791.83/424,774.13 = 171,852.50/x
  3. Step 3: Cross multiply
    307,791.83x = 424,774.13 × 171,852.50
  4. Step 4: Simplify right side
    307,791.83x = 72,998,496,378.50
  5. Step 5: Solve for x
    x = 72,998,496,378.50/307,791.83
  6. Step 6: Final answer
    x = 237,168.40

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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.