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Finding the Fourth Proportional to 202,305.82, 279,276.52 and 117,406.48

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Solution

The fourth proportional to 202,305.82, 279,276.52 and 117,406.48 is: 162,075.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,305.82 : 279,276.52 = 117,406.48 : x
  2. Step 2: Convert to fraction form
    202,305.82/279,276.52 = 117,406.48/x
  3. Step 3: Cross multiply
    202,305.82x = 279,276.52 × 117,406.48
  4. Step 4: Simplify right side
    202,305.82x = 32,788,873,159.85
  5. Step 5: Solve for x
    x = 32,788,873,159.85/202,305.82
  6. Step 6: Final answer
    x = 162,075.78

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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.