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Finding the Fourth Proportional to 169,617.51, 234,078.66 and 93,142.98

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Solution

The fourth proportional to 169,617.51, 234,078.66 and 93,142.98 is: 128,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,617.51 : 234,078.66 = 93,142.98 : x
  2. Step 2: Convert to fraction form
    169,617.51/234,078.66 = 93,142.98/x
  3. Step 3: Cross multiply
    169,617.51x = 234,078.66 × 93,142.98
  4. Step 4: Simplify right side
    169,617.51x = 21,802,783,946.81
  5. Step 5: Solve for x
    x = 21,802,783,946.81/169,617.51
  6. Step 6: Final answer
    x = 128,540.88

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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.