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Finding the Fourth Proportional to 526,357.22, 789,528.48 and 126,994.64

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Solution

The fourth proportional to 526,357.22, 789,528.48 and 126,994.64 is: 190,490.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,357.22 : 789,528.48 = 126,994.64 : x
  2. Step 2: Convert to fraction form
    526,357.22/789,528.48 = 126,994.64/x
  3. Step 3: Cross multiply
    526,357.22x = 789,528.48 × 126,994.64
  4. Step 4: Simplify right side
    526,357.22x = 100,265,885,087.35
  5. Step 5: Solve for x
    x = 100,265,885,087.35/526,357.22
  6. Step 6: Final answer
    x = 190,490.19

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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.