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Finding the Fourth Proportional to 609,012.34, 913,496.64 and 159,729.64

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Solution

The fourth proportional to 609,012.34, 913,496.64 and 159,729.64 is: 239,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,012.34 : 913,496.64 = 159,729.64 : x
  2. Step 2: Convert to fraction form
    609,012.34/913,496.64 = 159,729.64/x
  3. Step 3: Cross multiply
    609,012.34x = 913,496.64 × 159,729.64
  4. Step 4: Simplify right side
    609,012.34x = 145,912,492,131.48
  5. Step 5: Solve for x
    x = 145,912,492,131.48/609,012.34
  6. Step 6: Final answer
    x = 239,588.73

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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.