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Finding the Fourth Proportional to 118,610.58, 163,686.49 and 64,894.37

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Solution

The fourth proportional to 118,610.58, 163,686.49 and 64,894.37 is: 89,556.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,610.58 : 163,686.49 = 64,894.37 : x
  2. Step 2: Convert to fraction form
    118,610.58/163,686.49 = 64,894.37/x
  3. Step 3: Cross multiply
    118,610.58x = 163,686.49 × 64,894.37
  4. Step 4: Simplify right side
    118,610.58x = 10,622,331,646.06
  5. Step 5: Solve for x
    x = 10,622,331,646.06/118,610.58
  6. Step 6: Final answer
    x = 89,556.36

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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.