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Finding the Fourth Proportional to 272,808.56, 376,494.74 and 165,383.12

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Solution

The fourth proportional to 272,808.56, 376,494.74 and 165,383.12 is: 228,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,808.56 : 376,494.74 = 165,383.12 : x
  2. Step 2: Convert to fraction form
    272,808.56/376,494.74 = 165,383.12/x
  3. Step 3: Cross multiply
    272,808.56x = 376,494.74 × 165,383.12
  4. Step 4: Simplify right side
    272,808.56x = 62,265,872,055.40
  5. Step 5: Solve for x
    x = 62,265,872,055.40/272,808.56
  6. Step 6: Final answer
    x = 228,240.17

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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.