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Finding the Fourth Proportional to 167,428.98, 251,156.34 and 47,483.88

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Solution

The fourth proportional to 167,428.98, 251,156.34 and 47,483.88 is: 71,229.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,428.98 : 251,156.34 = 47,483.88 : x
  2. Step 2: Convert to fraction form
    167,428.98/251,156.34 = 47,483.88/x
  3. Step 3: Cross multiply
    167,428.98x = 251,156.34 × 47,483.88
  4. Step 4: Simplify right side
    167,428.98x = 11,925,877,509.80
  5. Step 5: Solve for x
    x = 11,925,877,509.80/167,428.98
  6. Step 6: Final answer
    x = 71,229.47

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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.