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Finding the Fourth Proportional to 172,960.96, 238,686.40 and 96,485.02

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Solution

The fourth proportional to 172,960.96, 238,686.40 and 96,485.02 is: 133,149.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,960.96 : 238,686.40 = 96,485.02 : x
  2. Step 2: Convert to fraction form
    172,960.96/238,686.40 = 96,485.02/x
  3. Step 3: Cross multiply
    172,960.96x = 238,686.40 × 96,485.02
  4. Step 4: Simplify right side
    172,960.96x = 23,029,662,077.73
  5. Step 5: Solve for x
    x = 23,029,662,077.73/172,960.96
  6. Step 6: Final answer
    x = 133,149.48

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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.