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Finding the Fourth Proportional to 193,506.75, 290,185.56 and 75,162.51

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Solution

The fourth proportional to 193,506.75, 290,185.56 and 75,162.51 is: 112,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,506.75 : 290,185.56 = 75,162.51 : x
  2. Step 2: Convert to fraction form
    193,506.75/290,185.56 = 75,162.51/x
  3. Step 3: Cross multiply
    193,506.75x = 290,185.56 × 75,162.51
  4. Step 4: Simplify right side
    193,506.75x = 21,811,075,055.36
  5. Step 5: Solve for x
    x = 21,811,075,055.36/193,506.75
  6. Step 6: Final answer
    x = 112,714.80

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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.