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Finding the Fourth Proportional to 269,341.20, 403,574.40 and 169,322.40

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Solution

The fourth proportional to 269,341.20, 403,574.40 and 169,322.40 is: 253,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,341.20 : 403,574.40 = 169,322.40 : x
  2. Step 2: Convert to fraction form
    269,341.20/403,574.40 = 169,322.40/x
  3. Step 3: Cross multiply
    269,341.20x = 403,574.40 × 169,322.40
  4. Step 4: Simplify right side
    269,341.20x = 68,334,185,986.56
  5. Step 5: Solve for x
    x = 68,334,185,986.56/269,341.20
  6. Step 6: Final answer
    x = 253,708.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.