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Finding the Fourth Proportional to 194,980.57, 292,470.09 and 61,871.21

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Solution

The fourth proportional to 194,980.57, 292,470.09 and 61,871.21 is: 92,806.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,980.57 : 292,470.09 = 61,871.21 : x
  2. Step 2: Convert to fraction form
    194,980.57/292,470.09 = 61,871.21/x
  3. Step 3: Cross multiply
    194,980.57x = 292,470.09 × 61,871.21
  4. Step 4: Simplify right side
    194,980.57x = 18,095,476,585.40
  5. Step 5: Solve for x
    x = 18,095,476,585.40/194,980.57
  6. Step 6: Final answer
    x = 92,806.56

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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.