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Finding the Fourth Proportional to 74,759.94, 112,120.79 and 22,157.15

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Solution

The fourth proportional to 74,759.94, 112,120.79 and 22,157.15 is: 33,230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,759.94 : 112,120.79 = 22,157.15 : x
  2. Step 2: Convert to fraction form
    74,759.94/112,120.79 = 22,157.15/x
  3. Step 3: Cross multiply
    74,759.94x = 112,120.79 × 22,157.15
  4. Step 4: Simplify right side
    74,759.94x = 2,484,276,490.76
  5. Step 5: Solve for x
    x = 2,484,276,490.76/74,759.94
  6. Step 6: Final answer
    x = 33,230.05

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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.