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Finding the Fourth Proportional to 307,572.73, 424,449.78 and 171,598.59

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Solution

The fourth proportional to 307,572.73, 424,449.78 and 171,598.59 is: 236,805.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,572.73 : 424,449.78 = 171,598.59 : x
  2. Step 2: Convert to fraction form
    307,572.73/424,449.78 = 171,598.59/x
  3. Step 3: Cross multiply
    307,572.73x = 424,449.78 × 171,598.59
  4. Step 4: Simplify right side
    307,572.73x = 72,834,983,773.81
  5. Step 5: Solve for x
    x = 72,834,983,773.81/307,572.73
  6. Step 6: Final answer
    x = 236,805.73

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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.