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Finding the Fourth Proportional to 188,762.10, 283,144.59 and 68,904.96

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Solution

The fourth proportional to 188,762.10, 283,144.59 and 68,904.96 is: 103,357.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,762.10 : 283,144.59 = 68,904.96 : x
  2. Step 2: Convert to fraction form
    188,762.10/283,144.59 = 68,904.96/x
  3. Step 3: Cross multiply
    188,762.10x = 283,144.59 × 68,904.96
  4. Step 4: Simplify right side
    188,762.10x = 19,510,066,648.17
  5. Step 5: Solve for x
    x = 19,510,066,648.17/188,762.10
  6. Step 6: Final answer
    x = 103,357.97

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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.