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Finding the Fourth Proportional to 169,487.40, 233,891.95 and 93,007.78

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Solution

The fourth proportional to 169,487.40, 233,891.95 and 93,007.78 is: 128,350.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,487.40 : 233,891.95 = 93,007.78 : x
  2. Step 2: Convert to fraction form
    169,487.40/233,891.95 = 93,007.78/x
  3. Step 3: Cross multiply
    169,487.40x = 233,891.95 × 93,007.78
  4. Step 4: Simplify right side
    169,487.40x = 21,753,771,029.37
  5. Step 5: Solve for x
    x = 21,753,771,029.37/169,487.40
  6. Step 6: Final answer
    x = 128,350.37

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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.