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Finding the Fourth Proportional to 169,693.97, 254,539.50 and 68,490.47

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Solution

The fourth proportional to 169,693.97, 254,539.50 and 68,490.47 is: 102,735.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,693.97 : 254,539.50 = 68,490.47 : x
  2. Step 2: Convert to fraction form
    169,693.97/254,539.50 = 68,490.47/x
  3. Step 3: Cross multiply
    169,693.97x = 254,539.50 × 68,490.47
  4. Step 4: Simplify right side
    169,693.97x = 17,433,528,715.87
  5. Step 5: Solve for x
    x = 17,433,528,715.87/169,693.97
  6. Step 6: Final answer
    x = 102,735.11

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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.