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Finding the Fourth Proportional to 117,940.80, 162,754.44 and 64,225.40

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Solution

The fourth proportional to 117,940.80, 162,754.44 and 64,225.40 is: 88,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,940.80 : 162,754.44 = 64,225.40 : x
  2. Step 2: Convert to fraction form
    117,940.80/162,754.44 = 64,225.40/x
  3. Step 3: Cross multiply
    117,940.80x = 162,754.44 × 64,225.40
  4. Step 4: Simplify right side
    117,940.80x = 10,452,969,010.78
  5. Step 5: Solve for x
    x = 10,452,969,010.78/117,940.80
  6. Step 6: Final answer
    x = 88,628.95

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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.