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Finding the Fourth Proportional to 331,659.90, 457,702.92 and 188,444.34

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Solution

The fourth proportional to 331,659.90, 457,702.92 and 188,444.34 is: 260,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,659.90 : 457,702.92 = 188,444.34 : x
  2. Step 2: Convert to fraction form
    331,659.90/457,702.92 = 188,444.34/x
  3. Step 3: Cross multiply
    331,659.90x = 457,702.92 × 188,444.34
  4. Step 4: Simplify right side
    331,659.90x = 86,251,524,675.47
  5. Step 5: Solve for x
    x = 86,251,524,675.47/331,659.90
  6. Step 6: Final answer
    x = 260,060.15

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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.