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Finding the Fourth Proportional to 247,157.97, 370,738.98 and 161,840.76

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Solution

The fourth proportional to 247,157.97, 370,738.98 and 161,840.76 is: 242,762.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,157.97 : 370,738.98 = 161,840.76 : x
  2. Step 2: Convert to fraction form
    247,157.97/370,738.98 = 161,840.76/x
  3. Step 3: Cross multiply
    247,157.97x = 370,738.98 × 161,840.76
  4. Step 4: Simplify right side
    247,157.97x = 60,000,678,284.82
  5. Step 5: Solve for x
    x = 60,000,678,284.82/247,157.97
  6. Step 6: Final answer
    x = 242,762.47

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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.