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Finding the Fourth Proportional to 1,161.03, 1,750.01 and 1,042.17

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Solution

The fourth proportional to 1,161.03, 1,750.01 and 1,042.17 is: 1,570.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161.03 : 1,750.01 = 1,042.17 : x
  2. Step 2: Convert to fraction form
    1,161.03/1,750.01 = 1,042.17/x
  3. Step 3: Cross multiply
    1,161.03x = 1,750.01 × 1,042.17
  4. Step 4: Simplify right side
    1,161.03x = 1,823,796.15
  5. Step 5: Solve for x
    x = 1,823,796.15/1,161.03
  6. Step 6: Final answer
    x = 1,570.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.