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Finding the Fourth Proportional to 319,847.22, 480,061.02 and 170,213.49

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Solution

The fourth proportional to 319,847.22, 480,061.02 and 170,213.49 is: 255,474.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,847.22 : 480,061.02 = 170,213.49 : x
  2. Step 2: Convert to fraction form
    319,847.22/480,061.02 = 170,213.49/x
  3. Step 3: Cross multiply
    319,847.22x = 480,061.02 × 170,213.49
  4. Step 4: Simplify right side
    319,847.22x = 81,712,861,627.16
  5. Step 5: Solve for x
    x = 81,712,861,627.16/319,847.22
  6. Step 6: Final answer
    x = 255,474.67

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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.