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Finding the Fourth Proportional to 114,696.90, 172,047.08 and 39,819.43

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Solution

The fourth proportional to 114,696.90, 172,047.08 and 39,819.43 is: 59,729.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,696.90 : 172,047.08 = 39,819.43 : x
  2. Step 2: Convert to fraction form
    114,696.90/172,047.08 = 39,819.43/x
  3. Step 3: Cross multiply
    114,696.90x = 172,047.08 × 39,819.43
  4. Step 4: Simplify right side
    114,696.90x = 6,850,815,599.43
  5. Step 5: Solve for x
    x = 6,850,815,599.43/114,696.90
  6. Step 6: Final answer
    x = 59,729.74

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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.