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Finding the Fourth Proportional to 174,670.58, 261,786.63 and 74,713.28

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Solution

The fourth proportional to 174,670.58, 261,786.63 and 74,713.28 is: 111,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,670.58 : 261,786.63 = 74,713.28 : x
  2. Step 2: Convert to fraction form
    174,670.58/261,786.63 = 74,713.28/x
  3. Step 3: Cross multiply
    174,670.58x = 261,786.63 × 74,713.28
  4. Step 4: Simplify right side
    174,670.58x = 19,558,937,787.45
  5. Step 5: Solve for x
    x = 19,558,937,787.45/174,670.58
  6. Step 6: Final answer
    x = 111,976.14

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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.