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Finding the Fourth Proportional to 53,953.64, 80,530.94 and 50,629.40

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Solution

The fourth proportional to 53,953.64, 80,530.94 and 50,629.40 is: 75,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,953.64 : 80,530.94 = 50,629.40 : x
  2. Step 2: Convert to fraction form
    53,953.64/80,530.94 = 50,629.40/x
  3. Step 3: Cross multiply
    53,953.64x = 80,530.94 × 50,629.40
  4. Step 4: Simplify right side
    53,953.64x = 4,077,233,173.64
  5. Step 5: Solve for x
    x = 4,077,233,173.64/53,953.64
  6. Step 6: Final answer
    x = 75,569.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.