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Finding the Fourth Proportional to 108,049.80, 149,048.82 and 63,329.16

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Solution

The fourth proportional to 108,049.80, 149,048.82 and 63,329.16 is: 87,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,049.80 : 149,048.82 = 63,329.16 : x
  2. Step 2: Convert to fraction form
    108,049.80/149,048.82 = 63,329.16/x
  3. Step 3: Cross multiply
    108,049.80x = 149,048.82 × 63,329.16
  4. Step 4: Simplify right side
    108,049.80x = 9,439,136,569.59
  5. Step 5: Solve for x
    x = 9,439,136,569.59/108,049.80
  6. Step 6: Final answer
    x = 87,359.13

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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.