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Finding the Fourth Proportional to 194,674.80, 292,012.20 and 161,869.80

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Solution

The fourth proportional to 194,674.80, 292,012.20 and 161,869.80 is: 242,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,674.80 : 292,012.20 = 161,869.80 : x
  2. Step 2: Convert to fraction form
    194,674.80/292,012.20 = 161,869.80/x
  3. Step 3: Cross multiply
    194,674.80x = 292,012.20 × 161,869.80
  4. Step 4: Simplify right side
    194,674.80x = 47,267,956,411.56
  5. Step 5: Solve for x
    x = 47,267,956,411.56/194,674.80
  6. Step 6: Final answer
    x = 242,804.70

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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.