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Finding the Fourth Proportional to 141,121.39, 194,813.78 and 94,633.39

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Solution

The fourth proportional to 141,121.39, 194,813.78 and 94,633.39 is: 130,638.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,121.39 : 194,813.78 = 94,633.39 : x
  2. Step 2: Convert to fraction form
    141,121.39/194,813.78 = 94,633.39/x
  3. Step 3: Cross multiply
    141,121.39x = 194,813.78 × 94,633.39
  4. Step 4: Simplify right side
    141,121.39x = 18,435,888,420.11
  5. Step 5: Solve for x
    x = 18,435,888,420.11/141,121.39
  6. Step 6: Final answer
    x = 130,638.51

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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.