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Finding the Fourth Proportional to 172,935.78, 238,654.98 and 97,484.28

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Solution

The fourth proportional to 172,935.78, 238,654.98 and 97,484.28 is: 134,530.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,935.78 : 238,654.98 = 97,484.28 : x
  2. Step 2: Convert to fraction form
    172,935.78/238,654.98 = 97,484.28/x
  3. Step 3: Cross multiply
    172,935.78x = 238,654.98 × 97,484.28
  4. Step 4: Simplify right side
    172,935.78x = 23,265,108,893.71
  5. Step 5: Solve for x
    x = 23,265,108,893.71/172,935.78
  6. Step 6: Final answer
    x = 134,530.34

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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.