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Finding the Fourth Proportional to 75,795.44, 113,696.16 and 28,405.58

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Solution

The fourth proportional to 75,795.44, 113,696.16 and 28,405.58 is: 42,609.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,795.44 : 113,696.16 = 28,405.58 : x
  2. Step 2: Convert to fraction form
    75,795.44/113,696.16 = 28,405.58/x
  3. Step 3: Cross multiply
    75,795.44x = 113,696.16 × 28,405.58
  4. Step 4: Simplify right side
    75,795.44x = 3,229,605,368.57
  5. Step 5: Solve for x
    x = 3,229,605,368.57/75,795.44
  6. Step 6: Final answer
    x = 42,609.49

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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.