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Finding the Fourth Proportional to 193,297.71, 289,877.04 and 66,903.63

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Solution

The fourth proportional to 193,297.71, 289,877.04 and 66,903.63 is: 100,331.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,297.71 : 289,877.04 = 66,903.63 : x
  2. Step 2: Convert to fraction form
    193,297.71/289,877.04 = 66,903.63/x
  3. Step 3: Cross multiply
    193,297.71x = 289,877.04 × 66,903.63
  4. Step 4: Simplify right side
    193,297.71x = 19,393,826,229.66
  5. Step 5: Solve for x
    x = 19,393,826,229.66/193,297.71
  6. Step 6: Final answer
    x = 100,331.38

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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.