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Finding the Fourth Proportional to 108,496.71, 149,725.45 and 60,751.08

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Solution

The fourth proportional to 108,496.71, 149,725.45 and 60,751.08 is: 83,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,496.71 : 149,725.45 = 60,751.08 : x
  2. Step 2: Convert to fraction form
    108,496.71/149,725.45 = 60,751.08/x
  3. Step 3: Cross multiply
    108,496.71x = 149,725.45 × 60,751.08
  4. Step 4: Simplify right side
    108,496.71x = 9,095,982,042.36
  5. Step 5: Solve for x
    x = 9,095,982,042.36/108,496.71
  6. Step 6: Final answer
    x = 83,836.48

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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.