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Finding the Fourth Proportional to 149,041.44, 205,677.23 and 81,973.44

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Solution

The fourth proportional to 149,041.44, 205,677.23 and 81,973.44 is: 113,123.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,041.44 : 205,677.23 = 81,973.44 : x
  2. Step 2: Convert to fraction form
    149,041.44/205,677.23 = 81,973.44/x
  3. Step 3: Cross multiply
    149,041.44x = 205,677.23 × 81,973.44
  4. Step 4: Simplify right side
    149,041.44x = 16,860,069,662.90
  5. Step 5: Solve for x
    x = 16,860,069,662.90/149,041.44
  6. Step 6: Final answer
    x = 113,123.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.