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Finding the Fourth Proportional to 292,977.36, 404,316.72 and 165,672

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Solution

The fourth proportional to 292,977.36, 404,316.72 and 165,672 is: 228,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,977.36 : 404,316.72 = 165,672 : x
  2. Step 2: Convert to fraction form
    292,977.36/404,316.72 = 165,672/x
  3. Step 3: Cross multiply
    292,977.36x = 404,316.72 × 165,672
  4. Step 4: Simplify right side
    292,977.36x = 66,983,959,635.84
  5. Step 5: Solve for x
    x = 66,983,959,635.84/292,977.36
  6. Step 6: Final answer
    x = 228,631.86

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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.