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Finding the Fourth Proportional to 298,061.28, 446,114.55 and 162,918.36

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Solution

The fourth proportional to 298,061.28, 446,114.55 and 162,918.36 is: 243,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,061.28 : 446,114.55 = 162,918.36 : x
  2. Step 2: Convert to fraction form
    298,061.28/446,114.55 = 162,918.36/x
  3. Step 3: Cross multiply
    298,061.28x = 446,114.55 × 162,918.36
  4. Step 4: Simplify right side
    298,061.28x = 72,680,250,858.14
  5. Step 5: Solve for x
    x = 72,680,250,858.14/298,061.28
  6. Step 6: Final answer
    x = 243,843.32

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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.