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Finding the Fourth Proportional to 118,033.31, 162,880.86 and 67,045.88

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Solution

The fourth proportional to 118,033.31, 162,880.86 and 67,045.88 is: 92,520.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,033.31 : 162,880.86 = 67,045.88 : x
  2. Step 2: Convert to fraction form
    118,033.31/162,880.86 = 67,045.88/x
  3. Step 3: Cross multiply
    118,033.31x = 162,880.86 × 67,045.88
  4. Step 4: Simplify right side
    118,033.31x = 10,920,489,779.45
  5. Step 5: Solve for x
    x = 10,920,489,779.45/118,033.31
  6. Step 6: Final answer
    x = 92,520.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.