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Finding the Fourth Proportional to 172,900.97, 238,604.37 and 96,424.89

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Solution

The fourth proportional to 172,900.97, 238,604.37 and 96,424.89 is: 133,066.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,900.97 : 238,604.37 = 96,424.89 : x
  2. Step 2: Convert to fraction form
    172,900.97/238,604.37 = 96,424.89/x
  3. Step 3: Cross multiply
    172,900.97x = 238,604.37 × 96,424.89
  4. Step 4: Simplify right side
    172,900.97x = 23,007,400,130.77
  5. Step 5: Solve for x
    x = 23,007,400,130.77/172,900.97
  6. Step 6: Final answer
    x = 133,066.93

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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.