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Finding the Fourth Proportional to 104,133.73, 155,995.55 and 66,065.57

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Solution

The fourth proportional to 104,133.73, 155,995.55 and 66,065.57 is: 98,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,133.73 : 155,995.55 = 66,065.57 : x
  2. Step 2: Convert to fraction form
    104,133.73/155,995.55 = 66,065.57/x
  3. Step 3: Cross multiply
    104,133.73x = 155,995.55 × 66,065.57
  4. Step 4: Simplify right side
    104,133.73x = 10,305,935,483.37
  5. Step 5: Solve for x
    x = 10,305,935,483.37/104,133.73
  6. Step 6: Final answer
    x = 98,968.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.