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Finding the Fourth Proportional to 79,685.76, 119,580.48 and 35,341.44

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Solution

The fourth proportional to 79,685.76, 119,580.48 and 35,341.44 is: 53,035.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,685.76 : 119,580.48 = 35,341.44 : x
  2. Step 2: Convert to fraction form
    79,685.76/119,580.48 = 35,341.44/x
  3. Step 3: Cross multiply
    79,685.76x = 119,580.48 × 35,341.44
  4. Step 4: Simplify right side
    79,685.76x = 4,226,146,359.09
  5. Step 5: Solve for x
    x = 4,226,146,359.09/79,685.76
  6. Step 6: Final answer
    x = 53,035.15

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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.