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Finding the Fourth Proportional to 114,889.54, 158,570.32 and 74,546.68

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Solution

The fourth proportional to 114,889.54, 158,570.32 and 74,546.68 is: 102,889.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,889.54 : 158,570.32 = 74,546.68 : x
  2. Step 2: Convert to fraction form
    114,889.54/158,570.32 = 74,546.68/x
  3. Step 3: Cross multiply
    114,889.54x = 158,570.32 × 74,546.68
  4. Step 4: Simplify right side
    114,889.54x = 11,820,890,902.54
  5. Step 5: Solve for x
    x = 11,820,890,902.54/114,889.54
  6. Step 6: Final answer
    x = 102,889.18

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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.