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Finding the Fourth Proportional to 343,659.09, 474,233.09 and 190,695.45

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Solution

The fourth proportional to 343,659.09, 474,233.09 and 190,695.45 is: 263,150.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,659.09 : 474,233.09 = 190,695.45 : x
  2. Step 2: Convert to fraction form
    343,659.09/474,233.09 = 190,695.45/x
  3. Step 3: Cross multiply
    343,659.09x = 474,233.09 × 190,695.45
  4. Step 4: Simplify right side
    343,659.09x = 90,434,092,502.44
  5. Step 5: Solve for x
    x = 90,434,092,502.44/343,659.09
  6. Step 6: Final answer
    x = 263,150.59

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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.