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Finding the Fourth Proportional to 139,161.26, 208,775.88 and 44,391.45

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Solution

The fourth proportional to 139,161.26, 208,775.88 and 44,391.45 is: 66,598.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,161.26 : 208,775.88 = 44,391.45 : x
  2. Step 2: Convert to fraction form
    139,161.26/208,775.88 = 44,391.45/x
  3. Step 3: Cross multiply
    139,161.26x = 208,775.88 × 44,391.45
  4. Step 4: Simplify right side
    139,161.26x = 9,267,864,038.23
  5. Step 5: Solve for x
    x = 9,267,864,038.23/139,161.26
  6. Step 6: Final answer
    x = 66,598.02

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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.