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Finding the Fourth Proportional to 135,803.25, 187,399.71 and 75,373.92

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Solution

The fourth proportional to 135,803.25, 187,399.71 and 75,373.92 is: 104,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,803.25 : 187,399.71 = 75,373.92 : x
  2. Step 2: Convert to fraction form
    135,803.25/187,399.71 = 75,373.92/x
  3. Step 3: Cross multiply
    135,803.25x = 187,399.71 × 75,373.92
  4. Step 4: Simplify right side
    135,803.25x = 14,125,050,749.56
  5. Step 5: Solve for x
    x = 14,125,050,749.56/135,803.25
  6. Step 6: Final answer
    x = 104,011.14

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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.