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Finding the Fourth Proportional to 172,936.76, 238,656.40 and 97,485.24

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Solution

The fourth proportional to 172,936.76, 238,656.40 and 97,485.24 is: 134,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,936.76 : 238,656.40 = 97,485.24 : x
  2. Step 2: Convert to fraction form
    172,936.76/238,656.40 = 97,485.24/x
  3. Step 3: Cross multiply
    172,936.76x = 238,656.40 × 97,485.24
  4. Step 4: Simplify right side
    172,936.76x = 23,265,476,431.54
  5. Step 5: Solve for x
    x = 23,265,476,431.54/172,936.76
  6. Step 6: Final answer
    x = 134,531.70

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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.