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Finding the Fourth Proportional to 292,769.76, 404,022.54 and 158,633.76

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Solution

The fourth proportional to 292,769.76, 404,022.54 and 158,633.76 is: 218,914.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,769.76 : 404,022.54 = 158,633.76 : x
  2. Step 2: Convert to fraction form
    292,769.76/404,022.54 = 158,633.76/x
  3. Step 3: Cross multiply
    292,769.76x = 404,022.54 × 158,633.76
  4. Step 4: Simplify right side
    292,769.76x = 64,091,614,644.95
  5. Step 5: Solve for x
    x = 64,091,614,644.95/292,769.76
  6. Step 6: Final answer
    x = 218,914.74

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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.