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Finding the Fourth Proportional to 1,175.14, 1,762.81 and 1,159.14

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Solution

The fourth proportional to 1,175.14, 1,762.81 and 1,159.14 is: 1,738.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.14 : 1,762.81 = 1,159.14 : x
  2. Step 2: Convert to fraction form
    1,175.14/1,762.81 = 1,159.14/x
  3. Step 3: Cross multiply
    1,175.14x = 1,762.81 × 1,159.14
  4. Step 4: Simplify right side
    1,175.14x = 2,043,353.82
  5. Step 5: Solve for x
    x = 2,043,353.82/1,175.14
  6. Step 6: Final answer
    x = 1,738.82

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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.