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Finding the Fourth Proportional to 1,159.88, 1,741.76 and 1,101.44

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Solution

The fourth proportional to 1,159.88, 1,741.76 and 1,101.44 is: 1,654.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.88 : 1,741.76 = 1,101.44 : x
  2. Step 2: Convert to fraction form
    1,159.88/1,741.76 = 1,101.44/x
  3. Step 3: Cross multiply
    1,159.88x = 1,741.76 × 1,101.44
  4. Step 4: Simplify right side
    1,159.88x = 1,918,444.13
  5. Step 5: Solve for x
    x = 1,918,444.13/1,159.88
  6. Step 6: Final answer
    x = 1,654.00

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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.