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Finding the Fourth Proportional to 291,698.40, 437,596.20 and 114,211.20

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Solution

The fourth proportional to 291,698.40, 437,596.20 and 114,211.20 is: 171,335.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,698.40 : 437,596.20 = 114,211.20 : x
  2. Step 2: Convert to fraction form
    291,698.40/437,596.20 = 114,211.20/x
  3. Step 3: Cross multiply
    291,698.40x = 437,596.20 × 114,211.20
  4. Step 4: Simplify right side
    291,698.40x = 49,978,387,117.44
  5. Step 5: Solve for x
    x = 49,978,387,117.44/291,698.40
  6. Step 6: Final answer
    x = 171,335.83

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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.