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Finding the Fourth Proportional to 291,570.86, 402,230.27 and 170,637.26

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Solution

The fourth proportional to 291,570.86, 402,230.27 and 170,637.26 is: 235,398.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,570.86 : 402,230.27 = 170,637.26 : x
  2. Step 2: Convert to fraction form
    291,570.86/402,230.27 = 170,637.26/x
  3. Step 3: Cross multiply
    291,570.86x = 402,230.27 × 170,637.26
  4. Step 4: Simplify right side
    291,570.86x = 68,635,469,577.30
  5. Step 5: Solve for x
    x = 68,635,469,577.30/291,570.86
  6. Step 6: Final answer
    x = 235,398.93

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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.