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Finding the Fourth Proportional to 170,391.45, 235,141.80 and 93,913.29

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Solution

The fourth proportional to 170,391.45, 235,141.80 and 93,913.29 is: 129,601.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,391.45 : 235,141.80 = 93,913.29 : x
  2. Step 2: Convert to fraction form
    170,391.45/235,141.80 = 93,913.29/x
  3. Step 3: Cross multiply
    170,391.45x = 235,141.80 × 93,913.29
  4. Step 4: Simplify right side
    170,391.45x = 22,082,940,054.52
  5. Step 5: Solve for x
    x = 22,082,940,054.52/170,391.45
  6. Step 6: Final answer
    x = 129,601.22

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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.