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Finding the Fourth Proportional to 423,340.22, 635,074.22 and 123,783.19

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Solution

The fourth proportional to 423,340.22, 635,074.22 and 123,783.19 is: 185,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,340.22 : 635,074.22 = 123,783.19 : x
  2. Step 2: Convert to fraction form
    423,340.22/635,074.22 = 123,783.19/x
  3. Step 3: Cross multiply
    423,340.22x = 635,074.22 × 123,783.19
  4. Step 4: Simplify right side
    423,340.22x = 78,611,511,560.13
  5. Step 5: Solve for x
    x = 78,611,511,560.13/423,340.22
  6. Step 6: Final answer
    x = 185,693.46

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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.