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Finding the Fourth Proportional to 118,072.68, 162,935.51 and 64,356.54

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Solution

The fourth proportional to 118,072.68, 162,935.51 and 64,356.54 is: 88,809.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,072.68 : 162,935.51 = 64,356.54 : x
  2. Step 2: Convert to fraction form
    118,072.68/162,935.51 = 64,356.54/x
  3. Step 3: Cross multiply
    118,072.68x = 162,935.51 × 64,356.54
  4. Step 4: Simplify right side
    118,072.68x = 10,485,965,344.95
  5. Step 5: Solve for x
    x = 10,485,965,344.95/118,072.68
  6. Step 6: Final answer
    x = 88,809.41

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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.