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Finding the Fourth Proportional to 465.60, 698.52 and 141

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Solution

The fourth proportional to 465.60, 698.52 and 141 is: 211.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.60 : 698.52 = 141 : x
  2. Step 2: Convert to fraction form
    465.60/698.52 = 141/x
  3. Step 3: Cross multiply
    465.60x = 698.52 × 141
  4. Step 4: Simplify right side
    465.60x = 98,491.32
  5. Step 5: Solve for x
    x = 98,491.32/465.60
  6. Step 6: Final answer
    x = 211.54

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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.