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Finding the Fourth Proportional to 117,960.52, 162,783.06 and 64,246.48

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Solution

The fourth proportional to 117,960.52, 162,783.06 and 64,246.48 is: 88,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,960.52 : 162,783.06 = 64,246.48 : x
  2. Step 2: Convert to fraction form
    117,960.52/162,783.06 = 64,246.48/x
  3. Step 3: Cross multiply
    117,960.52x = 162,783.06 × 64,246.48
  4. Step 4: Simplify right side
    117,960.52x = 10,458,238,608.63
  5. Step 5: Solve for x
    x = 10,458,238,608.63/117,960.52
  6. Step 6: Final answer
    x = 88,658.80

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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.