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Finding the Fourth Proportional to 113,744.75, 156,917.04 and 65,970.41

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Solution

The fourth proportional to 113,744.75, 156,917.04 and 65,970.41 is: 91,009.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,744.75 : 156,917.04 = 65,970.41 : x
  2. Step 2: Convert to fraction form
    113,744.75/156,917.04 = 65,970.41/x
  3. Step 3: Cross multiply
    113,744.75x = 156,917.04 × 65,970.41
  4. Step 4: Simplify right side
    113,744.75x = 10,351,881,464.79
  5. Step 5: Solve for x
    x = 10,351,881,464.79/113,744.75
  6. Step 6: Final answer
    x = 91,009.75

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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.