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Finding the Fourth Proportional to 117,093.10, 175,640.10 and 28,346.46

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Solution

The fourth proportional to 117,093.10, 175,640.10 and 28,346.46 is: 42,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,093.10 : 175,640.10 = 28,346.46 : x
  2. Step 2: Convert to fraction form
    117,093.10/175,640.10 = 28,346.46/x
  3. Step 3: Cross multiply
    117,093.10x = 175,640.10 × 28,346.46
  4. Step 4: Simplify right side
    117,093.10x = 4,978,774,927.31
  5. Step 5: Solve for x
    x = 4,978,774,927.31/117,093.10
  6. Step 6: Final answer
    x = 42,519.80

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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.