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Finding the Fourth Proportional to 117,628.60, 162,324.66 and 63,912.40

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Solution

The fourth proportional to 117,628.60, 162,324.66 and 63,912.40 is: 88,197.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,628.60 : 162,324.66 = 63,912.40 : x
  2. Step 2: Convert to fraction form
    117,628.60/162,324.66 = 63,912.40/x
  3. Step 3: Cross multiply
    117,628.60x = 162,324.66 × 63,912.40
  4. Step 4: Simplify right side
    117,628.60x = 10,374,558,599.78
  5. Step 5: Solve for x
    x = 10,374,558,599.78/117,628.60
  6. Step 6: Final answer
    x = 88,197.59

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1.5x scale

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.