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Finding the Fourth Proportional to 366,982.95, 550,342.31 and 127,031.66

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Solution

The fourth proportional to 366,982.95, 550,342.31 and 127,031.66 is: 190,501.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,982.95 : 550,342.31 = 127,031.66 : x
  2. Step 2: Convert to fraction form
    366,982.95/550,342.31 = 127,031.66/x
  3. Step 3: Cross multiply
    366,982.95x = 550,342.31 × 127,031.66
  4. Step 4: Simplify right side
    366,982.95x = 69,910,894,455.82
  5. Step 5: Solve for x
    x = 69,910,894,455.82/366,982.95
  6. Step 6: Final answer
    x = 190,501.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.