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Finding the Fourth Proportional to 117,713.10, 176,310.45 and 104,580.30

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Solution

The fourth proportional to 117,713.10, 176,310.45 and 104,580.30 is: 156,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,713.10 : 176,310.45 = 104,580.30 : x
  2. Step 2: Convert to fraction form
    117,713.10/176,310.45 = 104,580.30/x
  3. Step 3: Cross multiply
    117,713.10x = 176,310.45 × 104,580.30
  4. Step 4: Simplify right side
    117,713.10x = 18,438,599,754.14
  5. Step 5: Solve for x
    x = 18,438,599,754.14/117,713.10
  6. Step 6: Final answer
    x = 156,640.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.