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Finding the Fourth Proportional to 350,821.32, 484,133.40 and 189,676.32

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Solution

The fourth proportional to 350,821.32, 484,133.40 and 189,676.32 is: 261,753.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,821.32 : 484,133.40 = 189,676.32 : x
  2. Step 2: Convert to fraction form
    350,821.32/484,133.40 = 189,676.32/x
  3. Step 3: Cross multiply
    350,821.32x = 484,133.40 × 189,676.32
  4. Step 4: Simplify right side
    350,821.32x = 91,828,641,701.09
  5. Step 5: Solve for x
    x = 91,828,641,701.09/350,821.32
  6. Step 6: Final answer
    x = 261,753.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.