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Finding the Fourth Proportional to 117,554.78, 176,276.59 and 45,541.43

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Solution

The fourth proportional to 117,554.78, 176,276.59 and 45,541.43 is: 68,290.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,554.78 : 176,276.59 = 45,541.43 : x
  2. Step 2: Convert to fraction form
    117,554.78/176,276.59 = 45,541.43/x
  3. Step 3: Cross multiply
    117,554.78x = 176,276.59 × 45,541.43
  4. Step 4: Simplify right side
    117,554.78x = 8,027,888,310.96
  5. Step 5: Solve for x
    x = 8,027,888,310.96/117,554.78
  6. Step 6: Final answer
    x = 68,290.61

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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.