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Finding the Fourth Proportional to 108,546.71, 149,790.11 and 60,797.61

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Solution

The fourth proportional to 108,546.71, 149,790.11 and 60,797.61 is: 83,898.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,546.71 : 149,790.11 = 60,797.61 : x
  2. Step 2: Convert to fraction form
    108,546.71/149,790.11 = 60,797.61/x
  3. Step 3: Cross multiply
    108,546.71x = 149,790.11 × 60,797.61
  4. Step 4: Simplify right side
    108,546.71x = 9,106,880,385.65
  5. Step 5: Solve for x
    x = 9,106,880,385.65/108,546.71
  6. Step 6: Final answer
    x = 83,898.27

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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.