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Finding the Fourth Proportional to 72,273.80, 108,252.86 and 30,025.82

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Solution

The fourth proportional to 72,273.80, 108,252.86 and 30,025.82 is: 44,973.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,273.80 : 108,252.86 = 30,025.82 : x
  2. Step 2: Convert to fraction form
    72,273.80/108,252.86 = 30,025.82/x
  3. Step 3: Cross multiply
    72,273.80x = 108,252.86 × 30,025.82
  4. Step 4: Simplify right side
    72,273.80x = 3,250,381,009.35
  5. Step 5: Solve for x
    x = 3,250,381,009.35/72,273.80
  6. Step 6: Final answer
    x = 44,973.16

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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.