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Finding the Fourth Proportional to 170,393.52, 235,142.30 and 93,912.47

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Solution

The fourth proportional to 170,393.52, 235,142.30 and 93,912.47 is: 129,598.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,393.52 : 235,142.30 = 93,912.47 : x
  2. Step 2: Convert to fraction form
    170,393.52/235,142.30 = 93,912.47/x
  3. Step 3: Cross multiply
    170,393.52x = 235,142.30 × 93,912.47
  4. Step 4: Simplify right side
    170,393.52x = 22,082,792,549.21
  5. Step 5: Solve for x
    x = 22,082,792,549.21/170,393.52
  6. Step 6: Final answer
    x = 129,598.78

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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.