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Finding the Fourth Proportional to 499,768.88, 749,731.25 and 162,729.95

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Solution

The fourth proportional to 499,768.88, 749,731.25 and 162,729.95 is: 244,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,768.88 : 749,731.25 = 162,729.95 : x
  2. Step 2: Convert to fraction form
    499,768.88/749,731.25 = 162,729.95/x
  3. Step 3: Cross multiply
    499,768.88x = 749,731.25 × 162,729.95
  4. Step 4: Simplify right side
    499,768.88x = 122,003,725,484.11
  5. Step 5: Solve for x
    x = 122,003,725,484.11/499,768.88
  6. Step 6: Final answer
    x = 244,120.30

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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.