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Finding the Fourth Proportional to 303,674.04, 455,787.54 and 161,638.65

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Solution

The fourth proportional to 303,674.04, 455,787.54 and 161,638.65 is: 242,605.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,674.04 : 455,787.54 = 161,638.65 : x
  2. Step 2: Convert to fraction form
    303,674.04/455,787.54 = 161,638.65/x
  3. Step 3: Cross multiply
    303,674.04x = 455,787.54 × 161,638.65
  4. Step 4: Simplify right side
    303,674.04x = 73,672,882,652.42
  5. Step 5: Solve for x
    x = 73,672,882,652.42/303,674.04
  6. Step 6: Final answer
    x = 242,605.14

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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.