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Finding the Fourth Proportional to 373,786.40, 560,809.20 and 163,575.20

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Solution

The fourth proportional to 373,786.40, 560,809.20 and 163,575.20 is: 245,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,786.40 : 560,809.20 = 163,575.20 : x
  2. Step 2: Convert to fraction form
    373,786.40/560,809.20 = 163,575.20/x
  3. Step 3: Cross multiply
    373,786.40x = 560,809.20 × 163,575.20
  4. Step 4: Simplify right side
    373,786.40x = 91,734,477,051.84
  5. Step 5: Solve for x
    x = 91,734,477,051.84/373,786.40
  6. Step 6: Final answer
    x = 245,419.52

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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.