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Finding the Fourth Proportional to 356,590.86, 492,090.99 and 193,243.86

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Solution

The fourth proportional to 356,590.86, 492,090.99 and 193,243.86 is: 266,674.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,590.86 : 492,090.99 = 193,243.86 : x
  2. Step 2: Convert to fraction form
    356,590.86/492,090.99 = 193,243.86/x
  3. Step 3: Cross multiply
    356,590.86x = 492,090.99 × 193,243.86
  4. Step 4: Simplify right side
    356,590.86x = 95,093,562,378.82
  5. Step 5: Solve for x
    x = 95,093,562,378.82/356,590.86
  6. Step 6: Final answer
    x = 266,674.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.