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Finding the Fourth Proportional to 76,144.44, 104,978.66 and 62,482.44

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Solution

The fourth proportional to 76,144.44, 104,978.66 and 62,482.44 is: 86,143.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,144.44 : 104,978.66 = 62,482.44 : x
  2. Step 2: Convert to fraction form
    76,144.44/104,978.66 = 62,482.44/x
  3. Step 3: Cross multiply
    76,144.44x = 104,978.66 × 62,482.44
  4. Step 4: Simplify right side
    76,144.44x = 6,559,322,512.32
  5. Step 5: Solve for x
    x = 6,559,322,512.32/76,144.44
  6. Step 6: Final answer
    x = 86,143.16

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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.