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Finding the Fourth Proportional to 117,694.77, 162,416.87 and 63,981.14

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Solution

The fourth proportional to 117,694.77, 162,416.87 and 63,981.14 is: 88,292.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,694.77 : 162,416.87 = 63,981.14 : x
  2. Step 2: Convert to fraction form
    117,694.77/162,416.87 = 63,981.14/x
  3. Step 3: Cross multiply
    117,694.77x = 162,416.87 × 63,981.14
  4. Step 4: Simplify right side
    117,694.77x = 10,391,616,699.31
  5. Step 5: Solve for x
    x = 10,391,616,699.31/117,694.77
  6. Step 6: Final answer
    x = 88,292.93

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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.