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Finding the Fourth Proportional to 91,201.50, 125,855.62 and 50,914.13

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Solution

The fourth proportional to 91,201.50, 125,855.62 and 50,914.13 is: 70,260.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,201.50 : 125,855.62 = 50,914.13 : x
  2. Step 2: Convert to fraction form
    91,201.50/125,855.62 = 50,914.13/x
  3. Step 3: Cross multiply
    91,201.50x = 125,855.62 × 50,914.13
  4. Step 4: Simplify right side
    91,201.50x = 6,407,828,641.35
  5. Step 5: Solve for x
    x = 6,407,828,641.35/91,201.50
  6. Step 6: Final answer
    x = 70,260.12

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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.