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Finding the Fourth Proportional to 356,035.65, 491,313.51 and 194,893.98

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Solution

The fourth proportional to 356,035.65, 491,313.51 and 194,893.98 is: 268,945.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,035.65 : 491,313.51 = 194,893.98 : x
  2. Step 2: Convert to fraction form
    356,035.65/491,313.51 = 194,893.98/x
  3. Step 3: Cross multiply
    356,035.65x = 491,313.51 × 194,893.98
  4. Step 4: Simplify right side
    356,035.65x = 95,754,045,391.67
  5. Step 5: Solve for x
    x = 95,754,045,391.67/356,035.65
  6. Step 6: Final answer
    x = 268,945.11

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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.