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Finding the Fourth Proportional to 239,149.65, 358,775.07 and 79,216.52

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Solution

The fourth proportional to 239,149.65, 358,775.07 and 79,216.52 is: 118,841.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,149.65 : 358,775.07 = 79,216.52 : x
  2. Step 2: Convert to fraction form
    239,149.65/358,775.07 = 79,216.52/x
  3. Step 3: Cross multiply
    239,149.65x = 358,775.07 × 79,216.52
  4. Step 4: Simplify right side
    239,149.65x = 28,420,913,405.09
  5. Step 5: Solve for x
    x = 28,420,913,405.09/239,149.65
  6. Step 6: Final answer
    x = 118,841.54

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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.