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Finding the Fourth Proportional to 131,170.79, 195,733.15 and 117,033.64

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Solution

The fourth proportional to 131,170.79, 195,733.15 and 117,033.64 is: 174,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,170.79 : 195,733.15 = 117,033.64 : x
  2. Step 2: Convert to fraction form
    131,170.79/195,733.15 = 117,033.64/x
  3. Step 3: Cross multiply
    131,170.79x = 195,733.15 × 117,033.64
  4. Step 4: Simplify right side
    131,170.79x = 22,907,362,034.50
  5. Step 5: Solve for x
    x = 22,907,362,034.50/131,170.79
  6. Step 6: Final answer
    x = 174,637.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.