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Finding the Fourth Proportional to 373,994.70, 561,186.45 and 163,653.90

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Solution

The fourth proportional to 373,994.70, 561,186.45 and 163,653.90 is: 245,565.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,994.70 : 561,186.45 = 163,653.90 : x
  2. Step 2: Convert to fraction form
    373,994.70/561,186.45 = 163,653.90/x
  3. Step 3: Cross multiply
    373,994.70x = 561,186.45 × 163,653.90
  4. Step 4: Simplify right side
    373,994.70x = 91,840,351,169.66
  5. Step 5: Solve for x
    x = 91,840,351,169.66/373,994.70
  6. Step 6: Final answer
    x = 245,565.92

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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.