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Finding the Fourth Proportional to 139,074.94, 208,543.31 and 44,292.76

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Solution

The fourth proportional to 139,074.94, 208,543.31 and 44,292.76 is: 66,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,074.94 : 208,543.31 = 44,292.76 : x
  2. Step 2: Convert to fraction form
    139,074.94/208,543.31 = 44,292.76/x
  3. Step 3: Cross multiply
    139,074.94x = 208,543.31 × 44,292.76
  4. Step 4: Simplify right side
    139,074.94x = 9,236,958,202.71
  5. Step 5: Solve for x
    x = 9,236,958,202.71/139,074.94
  6. Step 6: Final answer
    x = 66,417.13

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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.