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Finding the Fourth Proportional to 139,604.74, 209,327.54 and 95,285.14

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Solution

The fourth proportional to 139,604.74, 209,327.54 and 95,285.14 is: 142,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,604.74 : 209,327.54 = 95,285.14 : x
  2. Step 2: Convert to fraction form
    139,604.74/209,327.54 = 95,285.14/x
  3. Step 3: Cross multiply
    139,604.74x = 209,327.54 × 95,285.14
  4. Step 4: Simplify right side
    139,604.74x = 19,945,803,954.76
  5. Step 5: Solve for x
    x = 19,945,803,954.76/139,604.74
  6. Step 6: Final answer
    x = 142,873.40

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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.