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Finding the Fourth Proportional to 72,955.64, 100,664.78 and 44,267.44

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Solution

The fourth proportional to 72,955.64, 100,664.78 and 44,267.44 is: 61,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,955.64 : 100,664.78 = 44,267.44 : x
  2. Step 2: Convert to fraction form
    72,955.64/100,664.78 = 44,267.44/x
  3. Step 3: Cross multiply
    72,955.64x = 100,664.78 × 44,267.44
  4. Step 4: Simplify right side
    72,955.64x = 4,456,172,108.76
  5. Step 5: Solve for x
    x = 4,456,172,108.76/72,955.64
  6. Step 6: Final answer
    x = 61,080.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.