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Finding the Fourth Proportional to 292,803.08, 404,060.66 and 161,985.56

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Solution

The fourth proportional to 292,803.08, 404,060.66 and 161,985.56 is: 223,535.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,803.08 : 404,060.66 = 161,985.56 : x
  2. Step 2: Convert to fraction form
    292,803.08/404,060.66 = 161,985.56/x
  3. Step 3: Cross multiply
    292,803.08x = 404,060.66 × 161,985.56
  4. Step 4: Simplify right side
    292,803.08x = 65,451,993,926.13
  5. Step 5: Solve for x
    x = 65,451,993,926.13/292,803.08
  6. Step 6: Final answer
    x = 223,535.88

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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.