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Finding the Fourth Proportional to 99,167.67, 136,875.69 and 60,936.48

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Solution

The fourth proportional to 99,167.67, 136,875.69 and 60,936.48 is: 84,107.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,167.67 : 136,875.69 = 60,936.48 : x
  2. Step 2: Convert to fraction form
    99,167.67/136,875.69 = 60,936.48/x
  3. Step 3: Cross multiply
    99,167.67x = 136,875.69 × 60,936.48
  4. Step 4: Simplify right side
    99,167.67x = 8,340,722,746.17
  5. Step 5: Solve for x
    x = 8,340,722,746.17/99,167.67
  6. Step 6: Final answer
    x = 84,107.28

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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.