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Finding the Fourth Proportional to 91,362.08, 126,118.53 and 55,563.59

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Solution

The fourth proportional to 91,362.08, 126,118.53 and 55,563.59 is: 76,701.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,362.08 : 126,118.53 = 55,563.59 : x
  2. Step 2: Convert to fraction form
    91,362.08/126,118.53 = 55,563.59/x
  3. Step 3: Cross multiply
    91,362.08x = 126,118.53 × 55,563.59
  4. Step 4: Simplify right side
    91,362.08x = 7,007,597,661.73
  5. Step 5: Solve for x
    x = 7,007,597,661.73/91,362.08
  6. Step 6: Final answer
    x = 76,701.38

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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.