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Finding the Fourth Proportional to 135,615.52, 203,395.44 and 51,346.67

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Solution

The fourth proportional to 135,615.52, 203,395.44 and 51,346.67 is: 77,009.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,615.52 : 203,395.44 = 51,346.67 : x
  2. Step 2: Convert to fraction form
    135,615.52/203,395.44 = 51,346.67/x
  3. Step 3: Cross multiply
    135,615.52x = 203,395.44 × 51,346.67
  4. Step 4: Simplify right side
    135,615.52x = 10,443,678,537.18
  5. Step 5: Solve for x
    x = 10,443,678,537.18/135,615.52
  6. Step 6: Final answer
    x = 77,009.47

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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.