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Finding the Fourth Proportional to 117,460.47, 162,095.55 and 63,745.48

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Solution

The fourth proportional to 117,460.47, 162,095.55 and 63,745.48 is: 87,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,460.47 : 162,095.55 = 63,745.48 : x
  2. Step 2: Convert to fraction form
    117,460.47/162,095.55 = 63,745.48/x
  3. Step 3: Cross multiply
    117,460.47x = 162,095.55 × 63,745.48
  4. Step 4: Simplify right side
    117,460.47x = 10,332,858,640.61
  5. Step 5: Solve for x
    x = 10,332,858,640.61/117,460.47
  6. Step 6: Final answer
    x = 87,968.82

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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.