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Finding the Fourth Proportional to 166,999.40, 250,061.70 and 122,384.60

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Solution

The fourth proportional to 166,999.40, 250,061.70 and 122,384.60 is: 183,256.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,999.40 : 250,061.70 = 122,384.60 : x
  2. Step 2: Convert to fraction form
    166,999.40/250,061.70 = 122,384.60/x
  3. Step 3: Cross multiply
    166,999.40x = 250,061.70 × 122,384.60
  4. Step 4: Simplify right side
    166,999.40x = 30,603,701,129.82
  5. Step 5: Solve for x
    x = 30,603,701,129.82/166,999.40
  6. Step 6: Final answer
    x = 183,256.35

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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.