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Finding the Fourth Proportional to 73,262.40, 109,807.20 and 54,772.80

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Solution

The fourth proportional to 73,262.40, 109,807.20 and 54,772.80 is: 82,094.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,262.40 : 109,807.20 = 54,772.80 : x
  2. Step 2: Convert to fraction form
    73,262.40/109,807.20 = 54,772.80/x
  3. Step 3: Cross multiply
    73,262.40x = 109,807.20 × 54,772.80
  4. Step 4: Simplify right side
    73,262.40x = 6,014,447,804.16
  5. Step 5: Solve for x
    x = 6,014,447,804.16/73,262.40
  6. Step 6: Final answer
    x = 82,094.61

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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.