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Finding the Fourth Proportional to 193,066.62, 289,556.19 and 68,407.62

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Solution

The fourth proportional to 193,066.62, 289,556.19 and 68,407.62 is: 102,595.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,066.62 : 289,556.19 = 68,407.62 : x
  2. Step 2: Convert to fraction form
    193,066.62/289,556.19 = 68,407.62/x
  3. Step 3: Cross multiply
    193,066.62x = 289,556.19 × 68,407.62
  4. Step 4: Simplify right side
    193,066.62x = 19,807,849,814.17
  5. Step 5: Solve for x
    x = 19,807,849,814.17/193,066.62
  6. Step 6: Final answer
    x = 102,595.93

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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.