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Finding the Fourth Proportional to 118,876.01, 164,047.95 and 65,160.92

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Solution

The fourth proportional to 118,876.01, 164,047.95 and 65,160.92 is: 89,921.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,876.01 : 164,047.95 = 65,160.92 : x
  2. Step 2: Convert to fraction form
    118,876.01/164,047.95 = 65,160.92/x
  3. Step 3: Cross multiply
    118,876.01x = 164,047.95 × 65,160.92
  4. Step 4: Simplify right side
    118,876.01x = 10,689,515,756.23
  5. Step 5: Solve for x
    x = 10,689,515,756.23/118,876.01
  6. Step 6: Final answer
    x = 89,921.56

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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.