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Finding the Fourth Proportional to 489,126.12, 733,720.56 and 169,308.82

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Solution

The fourth proportional to 489,126.12, 733,720.56 and 169,308.82 is: 253,974.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,126.12 : 733,720.56 = 169,308.82 : x
  2. Step 2: Convert to fraction form
    489,126.12/733,720.56 = 169,308.82/x
  3. Step 3: Cross multiply
    489,126.12x = 733,720.56 × 169,308.82
  4. Step 4: Simplify right side
    489,126.12x = 124,225,362,223.34
  5. Step 5: Solve for x
    x = 124,225,362,223.34/489,126.12
  6. Step 6: Final answer
    x = 253,974.09

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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.