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Finding the Fourth Proportional to 73,223.40, 109,848.06 and 28,867.80

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Solution

The fourth proportional to 73,223.40, 109,848.06 and 28,867.80 is: 43,306.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,223.40 : 109,848.06 = 28,867.80 : x
  2. Step 2: Convert to fraction form
    73,223.40/109,848.06 = 28,867.80/x
  3. Step 3: Cross multiply
    73,223.40x = 109,848.06 × 28,867.80
  4. Step 4: Simplify right side
    73,223.40x = 3,171,071,826.47
  5. Step 5: Solve for x
    x = 3,171,071,826.47/73,223.40
  6. Step 6: Final answer
    x = 43,306.81

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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.