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Finding the Fourth Proportional to 108,607.75, 149,872.51 and 63,293.11

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Solution

The fourth proportional to 108,607.75, 149,872.51 and 63,293.11 is: 87,340.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,607.75 : 149,872.51 = 63,293.11 : x
  2. Step 2: Convert to fraction form
    108,607.75/149,872.51 = 63,293.11/x
  3. Step 3: Cross multiply
    108,607.75x = 149,872.51 × 63,293.11
  4. Step 4: Simplify right side
    108,607.75x = 9,485,896,965.84
  5. Step 5: Solve for x
    x = 9,485,896,965.84/108,607.75
  6. Step 6: Final answer
    x = 87,340.89

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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.