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Finding the Fourth Proportional to 91,096.83, 125,713.79 and 50,813.20

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Solution

The fourth proportional to 91,096.83, 125,713.79 and 50,813.20 is: 70,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,096.83 : 125,713.79 = 50,813.20 : x
  2. Step 2: Convert to fraction form
    91,096.83/125,713.79 = 50,813.20/x
  3. Step 3: Cross multiply
    91,096.83x = 125,713.79 × 50,813.20
  4. Step 4: Simplify right side
    91,096.83x = 6,387,919,071.39
  5. Step 5: Solve for x
    x = 6,387,919,071.39/91,096.83
  6. Step 6: Final answer
    x = 70,122.30

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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.