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Finding the Fourth Proportional to 120,069.34, 179,943.01 and 93,447.47

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Solution

The fourth proportional to 120,069.34, 179,943.01 and 93,447.47 is: 140,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,069.34 : 179,943.01 = 93,447.47 : x
  2. Step 2: Convert to fraction form
    120,069.34/179,943.01 = 93,447.47/x
  3. Step 3: Cross multiply
    120,069.34x = 179,943.01 × 93,447.47
  4. Step 4: Simplify right side
    120,069.34x = 16,815,219,028.68
  5. Step 5: Solve for x
    x = 16,815,219,028.68/120,069.34
  6. Step 6: Final answer
    x = 140,045.90

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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.