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Finding the Fourth Proportional to 76,104, 114,156.36 and 26,856

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Solution

The fourth proportional to 76,104, 114,156.36 and 26,856 is: 40,284.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,104 : 114,156.36 = 26,856 : x
  2. Step 2: Convert to fraction form
    76,104/114,156.36 = 26,856/x
  3. Step 3: Cross multiply
    76,104x = 114,156.36 × 26,856
  4. Step 4: Simplify right side
    76,104x = 3,065,783,204.16
  5. Step 5: Solve for x
    x = 3,065,783,204.16/76,104
  6. Step 6: Final answer
    x = 40,284.13

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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.