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Finding the Fourth Proportional to 125,670.94, 188,447.18 and 45,652.49

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Solution

The fourth proportional to 125,670.94, 188,447.18 and 45,652.49 is: 68,457.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,670.94 : 188,447.18 = 45,652.49 : x
  2. Step 2: Convert to fraction form
    125,670.94/188,447.18 = 45,652.49/x
  3. Step 3: Cross multiply
    125,670.94x = 188,447.18 × 45,652.49
  4. Step 4: Simplify right side
    125,670.94x = 8,603,082,172.37
  5. Step 5: Solve for x
    x = 8,603,082,172.37/125,670.94
  6. Step 6: Final answer
    x = 68,457.21

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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.