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Finding the Fourth Proportional to 317,156.98, 475,737.06 and 80,499.73

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Solution

The fourth proportional to 317,156.98, 475,737.06 and 80,499.73 is: 120,750.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,156.98 : 475,737.06 = 80,499.73 : x
  2. Step 2: Convert to fraction form
    317,156.98/475,737.06 = 80,499.73/x
  3. Step 3: Cross multiply
    317,156.98x = 475,737.06 × 80,499.73
  4. Step 4: Simplify right side
    317,156.98x = 38,296,706,518.61
  5. Step 5: Solve for x
    x = 38,296,706,518.61/317,156.98
  6. Step 6: Final answer
    x = 120,750.00

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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.