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Finding the Fourth Proportional to 70,845.79, 106,216.44 and 23,443.78

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Solution

The fourth proportional to 70,845.79, 106,216.44 and 23,443.78 is: 35,148.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,845.79 : 106,216.44 = 23,443.78 : x
  2. Step 2: Convert to fraction form
    70,845.79/106,216.44 = 23,443.78/x
  3. Step 3: Cross multiply
    70,845.79x = 106,216.44 × 23,443.78
  4. Step 4: Simplify right side
    70,845.79x = 2,490,114,851.74
  5. Step 5: Solve for x
    x = 2,490,114,851.74/70,845.79
  6. Step 6: Final answer
    x = 35,148.38

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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.