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Finding the Fourth Proportional to 108,417.88, 149,621.28 and 67,033.88

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Solution

The fourth proportional to 108,417.88, 149,621.28 and 67,033.88 is: 92,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,417.88 : 149,621.28 = 67,033.88 : x
  2. Step 2: Convert to fraction form
    108,417.88/149,621.28 = 67,033.88/x
  3. Step 3: Cross multiply
    108,417.88x = 149,621.28 × 67,033.88
  4. Step 4: Simplify right side
    108,417.88x = 10,029,694,928.97
  5. Step 5: Solve for x
    x = 10,029,694,928.97/108,417.88
  6. Step 6: Final answer
    x = 92,509.60

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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.