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Finding the Fourth Proportional to 701, 1,051.52 and 188

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Solution

The fourth proportional to 701, 1,051.52 and 188 is: 282.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    701 : 1,051.52 = 188 : x
  2. Step 2: Convert to fraction form
    701/1,051.52 = 188/x
  3. Step 3: Cross multiply
    701x = 1,051.52 × 188
  4. Step 4: Simplify right side
    701x = 197,685.76
  5. Step 5: Solve for x
    x = 197,685.76/701
  6. Step 6: Final answer
    x = 282.01

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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.