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Finding the Fourth Proportional to 293,153.80, 439,730.70 and 251,163.40

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Solution

The fourth proportional to 293,153.80, 439,730.70 and 251,163.40 is: 376,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,153.80 : 439,730.70 = 251,163.40 : x
  2. Step 2: Convert to fraction form
    293,153.80/439,730.70 = 251,163.40/x
  3. Step 3: Cross multiply
    293,153.80x = 439,730.70 × 251,163.40
  4. Step 4: Simplify right side
    293,153.80x = 110,444,257,696.38
  5. Step 5: Solve for x
    x = 110,444,257,696.38/293,153.80
  6. Step 6: Final answer
    x = 376,745.10

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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.