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Finding the Fourth Proportional to 79,678.75, 119,490.27 and 23,503.94

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Solution

The fourth proportional to 79,678.75, 119,490.27 and 23,503.94 is: 35,247.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,678.75 : 119,490.27 = 23,503.94 : x
  2. Step 2: Convert to fraction form
    79,678.75/119,490.27 = 23,503.94/x
  3. Step 3: Cross multiply
    79,678.75x = 119,490.27 × 23,503.94
  4. Step 4: Simplify right side
    79,678.75x = 2,808,492,019.14
  5. Step 5: Solve for x
    x = 2,808,492,019.14/79,678.75
  6. Step 6: Final answer
    x = 35,247.69

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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.