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Finding the Fourth Proportional to 295,347.65, 407,630.62 and 171,151.21

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Solution

The fourth proportional to 295,347.65, 407,630.62 and 171,151.21 is: 236,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,347.65 : 407,630.62 = 171,151.21 : x
  2. Step 2: Convert to fraction form
    295,347.65/407,630.62 = 171,151.21/x
  3. Step 3: Cross multiply
    295,347.65x = 407,630.62 × 171,151.21
  4. Step 4: Simplify right side
    295,347.65x = 69,766,471,380.02
  5. Step 5: Solve for x
    x = 69,766,471,380.02/295,347.65
  6. Step 6: Final answer
    x = 236,218.14

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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.