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Finding the Fourth Proportional to 108,133.94, 149,237.52 and 89,952.56

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Solution

The fourth proportional to 108,133.94, 149,237.52 and 89,952.56 is: 124,145.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,133.94 : 149,237.52 = 89,952.56 : x
  2. Step 2: Convert to fraction form
    108,133.94/149,237.52 = 89,952.56/x
  3. Step 3: Cross multiply
    108,133.94x = 149,237.52 × 89,952.56
  4. Step 4: Simplify right side
    108,133.94x = 13,424,296,972.05
  5. Step 5: Solve for x
    x = 13,424,296,972.05/108,133.94
  6. Step 6: Final answer
    x = 124,145.08

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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.