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Finding the Fourth Proportional to 247,271.70, 370,907.55 and 163,072.20

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Solution

The fourth proportional to 247,271.70, 370,907.55 and 163,072.20 is: 244,608.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,271.70 : 370,907.55 = 163,072.20 : x
  2. Step 2: Convert to fraction form
    247,271.70/370,907.55 = 163,072.20/x
  3. Step 3: Cross multiply
    247,271.70x = 370,907.55 × 163,072.20
  4. Step 4: Simplify right side
    247,271.70x = 60,484,710,175.11
  5. Step 5: Solve for x
    x = 60,484,710,175.11/247,271.70
  6. Step 6: Final answer
    x = 244,608.30

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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.