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Finding the Fourth Proportional to 355,772.34, 490,969.70 and 194,623.92

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Solution

The fourth proportional to 355,772.34, 490,969.70 and 194,623.92 is: 268,583.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,772.34 : 490,969.70 = 194,623.92 : x
  2. Step 2: Convert to fraction form
    355,772.34/490,969.70 = 194,623.92/x
  3. Step 3: Cross multiply
    355,772.34x = 490,969.70 × 194,623.92
  4. Step 4: Simplify right side
    355,772.34x = 95,554,446,642.10
  5. Step 5: Solve for x
    x = 95,554,446,642.10/355,772.34
  6. Step 6: Final answer
    x = 268,583.13

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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.