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Finding the Fourth Proportional to 67,312.30, 100,980.46 and 22,336.36

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Solution

The fourth proportional to 67,312.30, 100,980.46 and 22,336.36 is: 33,508.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,312.30 : 100,980.46 = 22,336.36 : x
  2. Step 2: Convert to fraction form
    67,312.30/100,980.46 = 22,336.36/x
  3. Step 3: Cross multiply
    67,312.30x = 100,980.46 × 22,336.36
  4. Step 4: Simplify right side
    67,312.30x = 2,255,535,907.53
  5. Step 5: Solve for x
    x = 2,255,535,907.53/67,312.30
  6. Step 6: Final answer
    x = 33,508.53

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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.