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Finding the Fourth Proportional to 117,456.46, 162,090.34 and 63,741.46

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Solution

The fourth proportional to 117,456.46, 162,090.34 and 63,741.46 is: 87,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,456.46 : 162,090.34 = 63,741.46 : x
  2. Step 2: Convert to fraction form
    117,456.46/162,090.34 = 63,741.46/x
  3. Step 3: Cross multiply
    117,456.46x = 162,090.34 × 63,741.46
  4. Step 4: Simplify right side
    117,456.46x = 10,331,874,923.50
  5. Step 5: Solve for x
    x = 10,331,874,923.50/117,456.46
  6. Step 6: Final answer
    x = 87,963.45

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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.