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Finding the Fourth Proportional to 370.59, 555.66 and 165.06

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Solution

The fourth proportional to 370.59, 555.66 and 165.06 is: 247.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.59 : 555.66 = 165.06 : x
  2. Step 2: Convert to fraction form
    370.59/555.66 = 165.06/x
  3. Step 3: Cross multiply
    370.59x = 555.66 × 165.06
  4. Step 4: Simplify right side
    370.59x = 91,717.24
  5. Step 5: Solve for x
    x = 91,717.24/370.59
  6. Step 6: Final answer
    x = 247.49

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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.