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Finding the Fourth Proportional to 162,072.69, 243,109.08 and 43,744.02

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Solution

The fourth proportional to 162,072.69, 243,109.08 and 43,744.02 is: 65,616.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,072.69 : 243,109.08 = 43,744.02 : x
  2. Step 2: Convert to fraction form
    162,072.69/243,109.08 = 43,744.02/x
  3. Step 3: Cross multiply
    162,072.69x = 243,109.08 × 43,744.02
  4. Step 4: Simplify right side
    162,072.69x = 10,634,568,457.70
  5. Step 5: Solve for x
    x = 10,634,568,457.70/162,072.69
  6. Step 6: Final answer
    x = 65,616.04

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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.