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Finding the Fourth Proportional to 169,583.81, 254,381.12 and 85,297.94

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Solution

The fourth proportional to 169,583.81, 254,381.12 and 85,297.94 is: 127,949.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,583.81 : 254,381.12 = 85,297.94 : x
  2. Step 2: Convert to fraction form
    169,583.81/254,381.12 = 85,297.94/x
  3. Step 3: Cross multiply
    169,583.81x = 254,381.12 × 85,297.94
  4. Step 4: Simplify right side
    169,583.81x = 21,698,185,566.09
  5. Step 5: Solve for x
    x = 21,698,185,566.09/169,583.81
  6. Step 6: Final answer
    x = 127,949.63

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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.