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Finding the Fourth Proportional to 57,803.79, 79,463.25 and 49,707.63

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Solution

The fourth proportional to 57,803.79, 79,463.25 and 49,707.63 is: 68,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,803.79 : 79,463.25 = 49,707.63 : x
  2. Step 2: Convert to fraction form
    57,803.79/79,463.25 = 49,707.63/x
  3. Step 3: Cross multiply
    57,803.79x = 79,463.25 × 49,707.63
  4. Step 4: Simplify right side
    57,803.79x = 3,949,929,829.60
  5. Step 5: Solve for x
    x = 3,949,929,829.60/57,803.79
  6. Step 6: Final answer
    x = 68,333.41

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.