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Finding the Fourth Proportional to 117,231.60, 175,516.20 and 91,239.60

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Solution

The fourth proportional to 117,231.60, 175,516.20 and 91,239.60 is: 136,601.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,231.60 : 175,516.20 = 91,239.60 : x
  2. Step 2: Convert to fraction form
    117,231.60/175,516.20 = 91,239.60/x
  3. Step 3: Cross multiply
    117,231.60x = 175,516.20 × 91,239.60
  4. Step 4: Simplify right side
    117,231.60x = 16,014,027,881.52
  5. Step 5: Solve for x
    x = 16,014,027,881.52/117,231.60
  6. Step 6: Final answer
    x = 136,601.63

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1.5x scale

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.