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Finding the Fourth Proportional to 79,678.54, 119,489.96 and 23,503.74

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Solution

The fourth proportional to 79,678.54, 119,489.96 and 23,503.74 is: 35,247.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,678.54 : 119,489.96 = 23,503.74 : x
  2. Step 2: Convert to fraction form
    79,678.54/119,489.96 = 23,503.74/x
  3. Step 3: Cross multiply
    79,678.54x = 119,489.96 × 23,503.74
  4. Step 4: Simplify right side
    79,678.54x = 2,808,460,497.02
  5. Step 5: Solve for x
    x = 2,808,460,497.02/79,678.54
  6. Step 6: Final answer
    x = 35,247.39

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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.