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Finding the Fourth Proportional to 169,662, 234,143.28 and 94,215.36

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Solution

The fourth proportional to 169,662, 234,143.28 and 94,215.36 is: 130,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,662 : 234,143.28 = 94,215.36 : x
  2. Step 2: Convert to fraction form
    169,662/234,143.28 = 94,215.36/x
  3. Step 3: Cross multiply
    169,662x = 234,143.28 × 94,215.36
  4. Step 4: Simplify right side
    169,662x = 22,059,893,416.78
  5. Step 5: Solve for x
    x = 22,059,893,416.78/169,662
  6. Step 6: Final answer
    x = 130,022.59

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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.