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Finding the Fourth Proportional to 526,355.22, 789,525.48 and 126,992.64

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Solution

The fourth proportional to 526,355.22, 789,525.48 and 126,992.64 is: 190,487.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,355.22 : 789,525.48 = 126,992.64 : x
  2. Step 2: Convert to fraction form
    526,355.22/789,525.48 = 126,992.64/x
  3. Step 3: Cross multiply
    526,355.22x = 789,525.48 × 126,992.64
  4. Step 4: Simplify right side
    526,355.22x = 100,263,925,052.47
  5. Step 5: Solve for x
    x = 100,263,925,052.47/526,355.22
  6. Step 6: Final answer
    x = 190,487.19

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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.