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Finding the Fourth Proportional to 161,674.40, 242,511.60 and 136,013.60

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Solution

The fourth proportional to 161,674.40, 242,511.60 and 136,013.60 is: 204,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,674.40 : 242,511.60 = 136,013.60 : x
  2. Step 2: Convert to fraction form
    161,674.40/242,511.60 = 136,013.60/x
  3. Step 3: Cross multiply
    161,674.40x = 242,511.60 × 136,013.60
  4. Step 4: Simplify right side
    161,674.40x = 32,984,875,757.76
  5. Step 5: Solve for x
    x = 32,984,875,757.76/161,674.40
  6. Step 6: Final answer
    x = 204,020.40

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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.