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Finding the Fourth Proportional to 129,993.11, 194,989.73 and 46,887.11

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Solution

The fourth proportional to 129,993.11, 194,989.73 and 46,887.11 is: 70,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,993.11 : 194,989.73 = 46,887.11 : x
  2. Step 2: Convert to fraction form
    129,993.11/194,989.73 = 46,887.11/x
  3. Step 3: Cross multiply
    129,993.11x = 194,989.73 × 46,887.11
  4. Step 4: Simplify right side
    129,993.11x = 9,142,504,684.94
  5. Step 5: Solve for x
    x = 9,142,504,684.94/129,993.11
  6. Step 6: Final answer
    x = 70,330.69

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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.