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Finding the Fourth Proportional to 115,969.52, 160,035.23 and 68,225.94

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Solution

The fourth proportional to 115,969.52, 160,035.23 and 68,225.94 is: 94,150.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,969.52 : 160,035.23 = 68,225.94 : x
  2. Step 2: Convert to fraction form
    115,969.52/160,035.23 = 68,225.94/x
  3. Step 3: Cross multiply
    115,969.52x = 160,035.23 × 68,225.94
  4. Step 4: Simplify right side
    115,969.52x = 10,918,554,170.43
  5. Step 5: Solve for x
    x = 10,918,554,170.43/115,969.52
  6. Step 6: Final answer
    x = 94,150.20

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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.