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Finding the Fourth Proportional to 248,847.84, 373,133.28 and 147,687

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Solution

The fourth proportional to 248,847.84, 373,133.28 and 147,687 is: 221,448.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,847.84 : 373,133.28 = 147,687 : x
  2. Step 2: Convert to fraction form
    248,847.84/373,133.28 = 147,687/x
  3. Step 3: Cross multiply
    248,847.84x = 373,133.28 × 147,687
  4. Step 4: Simplify right side
    248,847.84x = 55,106,934,723.36
  5. Step 5: Solve for x
    x = 55,106,934,723.36/248,847.84
  6. Step 6: Final answer
    x = 221,448.31

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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.