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Finding the Fourth Proportional to 139,373.68, 209,074.31 and 44,580.06

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Solution

The fourth proportional to 139,373.68, 209,074.31 and 44,580.06 is: 66,874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,373.68 : 209,074.31 = 44,580.06 : x
  2. Step 2: Convert to fraction form
    139,373.68/209,074.31 = 44,580.06/x
  3. Step 3: Cross multiply
    139,373.68x = 209,074.31 × 44,580.06
  4. Step 4: Simplify right side
    139,373.68x = 9,320,545,185.29
  5. Step 5: Solve for x
    x = 9,320,545,185.29/139,373.68
  6. Step 6: Final answer
    x = 66,874.50

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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.