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Finding the Fourth Proportional to 74,112.60, 111,241.80 and 36,714.90

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Solution

The fourth proportional to 74,112.60, 111,241.80 and 36,714.90 is: 55,108.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,112.60 : 111,241.80 = 36,714.90 : x
  2. Step 2: Convert to fraction form
    74,112.60/111,241.80 = 36,714.90/x
  3. Step 3: Cross multiply
    74,112.60x = 111,241.80 × 36,714.90
  4. Step 4: Simplify right side
    74,112.60x = 4,084,231,562.82
  5. Step 5: Solve for x
    x = 4,084,231,562.82/74,112.60
  6. Step 6: Final answer
    x = 55,108.46

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1.5x scale

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.