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Finding the Fourth Proportional to 216,894.30, 325,357.85 and 67,150.41

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Solution

The fourth proportional to 216,894.30, 325,357.85 and 67,150.41 is: 100,730.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,894.30 : 325,357.85 = 67,150.41 : x
  2. Step 2: Convert to fraction form
    216,894.30/325,357.85 = 67,150.41/x
  3. Step 3: Cross multiply
    216,894.30x = 325,357.85 × 67,150.41
  4. Step 4: Simplify right side
    216,894.30x = 21,847,913,024.22
  5. Step 5: Solve for x
    x = 21,847,913,024.22/216,894.30
  6. Step 6: Final answer
    x = 100,730.69

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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.