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Finding the Fourth Proportional to 128,993.77, 193,440.84 and 50,097.34

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Solution

The fourth proportional to 128,993.77, 193,440.84 and 50,097.34 is: 75,126.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,993.77 : 193,440.84 = 50,097.34 : x
  2. Step 2: Convert to fraction form
    128,993.77/193,440.84 = 50,097.34/x
  3. Step 3: Cross multiply
    128,993.77x = 193,440.84 × 50,097.34
  4. Step 4: Simplify right side
    128,993.77x = 9,690,871,531.37
  5. Step 5: Solve for x
    x = 9,690,871,531.37/128,993.77
  6. Step 6: Final answer
    x = 75,126.66

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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.