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Finding the Fourth Proportional to 446,554.64, 669,838.26 and 131,018.06

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Solution

The fourth proportional to 446,554.64, 669,838.26 and 131,018.06 is: 196,528.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,554.64 : 669,838.26 = 131,018.06 : x
  2. Step 2: Convert to fraction form
    446,554.64/669,838.26 = 131,018.06/x
  3. Step 3: Cross multiply
    446,554.64x = 669,838.26 × 131,018.06
  4. Step 4: Simplify right side
    446,554.64x = 87,760,909,338.98
  5. Step 5: Solve for x
    x = 87,760,909,338.98/446,554.64
  6. Step 6: Final answer
    x = 196,528.94

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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.