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Finding the Fourth Proportional to 117,486.10, 162,130.27 and 63,770.65

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Solution

The fourth proportional to 117,486.10, 162,130.27 and 63,770.65 is: 88,003.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,486.10 : 162,130.27 = 63,770.65 : x
  2. Step 2: Convert to fraction form
    117,486.10/162,130.27 = 63,770.65/x
  3. Step 3: Cross multiply
    117,486.10x = 162,130.27 × 63,770.65
  4. Step 4: Simplify right side
    117,486.10x = 10,339,151,891.92
  5. Step 5: Solve for x
    x = 10,339,151,891.92/117,486.10
  6. Step 6: Final answer
    x = 88,003.19

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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.