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Finding the Fourth Proportional to 296.55, 444.93 and 91.14

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Solution

The fourth proportional to 296.55, 444.93 and 91.14 is: 136.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.55 : 444.93 = 91.14 : x
  2. Step 2: Convert to fraction form
    296.55/444.93 = 91.14/x
  3. Step 3: Cross multiply
    296.55x = 444.93 × 91.14
  4. Step 4: Simplify right side
    296.55x = 40,550.92
  5. Step 5: Solve for x
    x = 40,550.92/296.55
  6. Step 6: Final answer
    x = 136.74

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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.