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Finding the Fourth Proportional to 83,132.70, 114,723.81 and 47,325.03

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Solution

The fourth proportional to 83,132.70, 114,723.81 and 47,325.03 is: 65,308.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,132.70 : 114,723.81 = 47,325.03 : x
  2. Step 2: Convert to fraction form
    83,132.70/114,723.81 = 47,325.03/x
  3. Step 3: Cross multiply
    83,132.70x = 114,723.81 × 47,325.03
  4. Step 4: Simplify right side
    83,132.70x = 5,429,307,749.96
  5. Step 5: Solve for x
    x = 5,429,307,749.96/83,132.70
  6. Step 6: Final answer
    x = 65,308.93

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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.