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Finding the Fourth Proportional to 117,160.85, 161,682.13 and 63,445.96

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Solution

The fourth proportional to 117,160.85, 161,682.13 and 63,445.96 is: 87,555.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,160.85 : 161,682.13 = 63,445.96 : x
  2. Step 2: Convert to fraction form
    117,160.85/161,682.13 = 63,445.96/x
  3. Step 3: Cross multiply
    117,160.85x = 161,682.13 × 63,445.96
  4. Step 4: Simplify right side
    117,160.85x = 10,258,076,827.05
  5. Step 5: Solve for x
    x = 10,258,076,827.05/117,160.85
  6. Step 6: Final answer
    x = 87,555.50

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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.