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Finding the Fourth Proportional to 53,957.60, 80,936.40 and 50,674.40

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Solution

The fourth proportional to 53,957.60, 80,936.40 and 50,674.40 is: 76,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,957.60 : 80,936.40 = 50,674.40 : x
  2. Step 2: Convert to fraction form
    53,957.60/80,936.40 = 50,674.40/x
  3. Step 3: Cross multiply
    53,957.60x = 80,936.40 × 50,674.40
  4. Step 4: Simplify right side
    53,957.60x = 4,101,403,508.16
  5. Step 5: Solve for x
    x = 4,101,403,508.16/53,957.60
  6. Step 6: Final answer
    x = 76,011.60

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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.