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Finding the Fourth Proportional to 117,749.88, 162,495.56 and 64,035.48

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Solution

The fourth proportional to 117,749.88, 162,495.56 and 64,035.48 is: 88,369.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,749.88 : 162,495.56 = 64,035.48 : x
  2. Step 2: Convert to fraction form
    117,749.88/162,495.56 = 64,035.48/x
  3. Step 3: Cross multiply
    117,749.88x = 162,495.56 × 64,035.48
  4. Step 4: Simplify right side
    117,749.88x = 10,405,481,182.47
  5. Step 5: Solve for x
    x = 10,405,481,182.47/117,749.88
  6. Step 6: Final answer
    x = 88,369.36

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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.