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Finding the Fourth Proportional to 609,011.84, 913,495.89 and 159,729.14

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Solution

The fourth proportional to 609,011.84, 913,495.89 and 159,729.14 is: 239,587.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,011.84 : 913,495.89 = 159,729.14 : x
  2. Step 2: Convert to fraction form
    609,011.84/913,495.89 = 159,729.14/x
  3. Step 3: Cross multiply
    609,011.84x = 913,495.89 × 159,729.14
  4. Step 4: Simplify right side
    609,011.84x = 145,911,915,785.96
  5. Step 5: Solve for x
    x = 145,911,915,785.96/609,011.84
  6. Step 6: Final answer
    x = 239,587.98

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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.