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Finding the Fourth Proportional to 117,505.91, 162,160.11 and 63,790.93

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Solution

The fourth proportional to 117,505.91, 162,160.11 and 63,790.93 is: 88,032.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,505.91 : 162,160.11 = 63,790.93 : x
  2. Step 2: Convert to fraction form
    117,505.91/162,160.11 = 63,790.93/x
  3. Step 3: Cross multiply
    117,505.91x = 162,160.11 × 63,790.93
  4. Step 4: Simplify right side
    117,505.91x = 10,344,343,755.57
  5. Step 5: Solve for x
    x = 10,344,343,755.57/117,505.91
  6. Step 6: Final answer
    x = 88,032.54

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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.