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Finding the Fourth Proportional to 91,856.00, 137,749.02 and 54,426.63

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Solution

The fourth proportional to 91,856.00, 137,749.02 and 54,426.63 is: 81,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,856.00 : 137,749.02 = 54,426.63 : x
  2. Step 2: Convert to fraction form
    91,856.00/137,749.02 = 54,426.63/x
  3. Step 3: Cross multiply
    91,856.00x = 137,749.02 × 54,426.63
  4. Step 4: Simplify right side
    91,856.00x = 7,497,214,944.40
  5. Step 5: Solve for x
    x = 7,497,214,944.40/91,856.00
  6. Step 6: Final answer
    x = 81,619.22

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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.