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Finding the Fourth Proportional to 155,807.88, 233,929.44 and 79,959.48

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Solution

The fourth proportional to 155,807.88, 233,929.44 and 79,959.48 is: 120,050.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,807.88 : 233,929.44 = 79,959.48 : x
  2. Step 2: Convert to fraction form
    155,807.88/233,929.44 = 79,959.48/x
  3. Step 3: Cross multiply
    155,807.88x = 233,929.44 × 79,959.48
  4. Step 4: Simplify right side
    155,807.88x = 18,704,876,379.09
  5. Step 5: Solve for x
    x = 18,704,876,379.09/155,807.88
  6. Step 6: Final answer
    x = 120,050.90

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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.