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Finding the Fourth Proportional to 117,666.81, 162,381.27 and 63,951.96

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Solution

The fourth proportional to 117,666.81, 162,381.27 and 63,951.96 is: 88,254.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,666.81 : 162,381.27 = 63,951.96 : x
  2. Step 2: Convert to fraction form
    117,666.81/162,381.27 = 63,951.96/x
  3. Step 3: Cross multiply
    117,666.81x = 162,381.27 × 63,951.96
  4. Step 4: Simplify right side
    117,666.81x = 10,384,599,352.12
  5. Step 5: Solve for x
    x = 10,384,599,352.12/117,666.81
  6. Step 6: Final answer
    x = 88,254.28

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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.