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Finding the Fourth Proportional to 248,995.11, 343,557.48 and 146,965.86

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Solution

The fourth proportional to 248,995.11, 343,557.48 and 146,965.86 is: 202,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,995.11 : 343,557.48 = 146,965.86 : x
  2. Step 2: Convert to fraction form
    248,995.11/343,557.48 = 146,965.86/x
  3. Step 3: Cross multiply
    248,995.11x = 343,557.48 × 146,965.86
  4. Step 4: Simplify right side
    248,995.11x = 50,491,220,507.63
  5. Step 5: Solve for x
    x = 50,491,220,507.63/248,995.11
  6. Step 6: Final answer
    x = 202,779.97

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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.