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Finding the Fourth Proportional to 139,144.44, 208,733.28 and 44,341.80

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Solution

The fourth proportional to 139,144.44, 208,733.28 and 44,341.80 is: 66,518.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,144.44 : 208,733.28 = 44,341.80 : x
  2. Step 2: Convert to fraction form
    139,144.44/208,733.28 = 44,341.80/x
  3. Step 3: Cross multiply
    139,144.44x = 208,733.28 × 44,341.80
  4. Step 4: Simplify right side
    139,144.44x = 9,255,609,355.10
  5. Step 5: Solve for x
    x = 9,255,609,355.10/139,144.44
  6. Step 6: Final answer
    x = 66,518.00

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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.