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Finding the Fourth Proportional to 91,119.63, 125,744.70 and 50,833.42

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Solution

The fourth proportional to 91,119.63, 125,744.70 and 50,833.42 is: 70,149.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,119.63 : 125,744.70 = 50,833.42 : x
  2. Step 2: Convert to fraction form
    91,119.63/125,744.70 = 50,833.42/x
  3. Step 3: Cross multiply
    91,119.63x = 125,744.70 × 50,833.42
  4. Step 4: Simplify right side
    91,119.63x = 6,392,033,731.45
  5. Step 5: Solve for x
    x = 6,392,033,731.45/91,119.63
  6. Step 6: Final answer
    x = 70,149.91

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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.