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Finding the Fourth Proportional to 118,213.84, 177,268.88 and 44,290

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Solution

The fourth proportional to 118,213.84, 177,268.88 and 44,290 is: 66,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,213.84 : 177,268.88 = 44,290 : x
  2. Step 2: Convert to fraction form
    118,213.84/177,268.88 = 44,290/x
  3. Step 3: Cross multiply
    118,213.84x = 177,268.88 × 44,290
  4. Step 4: Simplify right side
    118,213.84x = 7,851,238,695.20
  5. Step 5: Solve for x
    x = 7,851,238,695.20/118,213.84
  6. Step 6: Final answer
    x = 66,415.56

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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.