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Finding the Fourth Proportional to 76,010.22, 104,893.41 and 42,019.58

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Solution

The fourth proportional to 76,010.22, 104,893.41 and 42,019.58 is: 57,986.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,010.22 : 104,893.41 = 42,019.58 : x
  2. Step 2: Convert to fraction form
    76,010.22/104,893.41 = 42,019.58/x
  3. Step 3: Cross multiply
    76,010.22x = 104,893.41 × 42,019.58
  4. Step 4: Simplify right side
    76,010.22x = 4,407,577,137.63
  5. Step 5: Solve for x
    x = 4,407,577,137.63/76,010.22
  6. Step 6: Final answer
    x = 57,986.64

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1.5x scale

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.