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Finding the Fourth Proportional to 193,162.40, 289,743.60 and 122,303.60

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Solution

The fourth proportional to 193,162.40, 289,743.60 and 122,303.60 is: 183,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,162.40 : 289,743.60 = 122,303.60 : x
  2. Step 2: Convert to fraction form
    193,162.40/289,743.60 = 122,303.60/x
  3. Step 3: Cross multiply
    193,162.40x = 289,743.60 × 122,303.60
  4. Step 4: Simplify right side
    193,162.40x = 35,436,685,356.96
  5. Step 5: Solve for x
    x = 35,436,685,356.96/193,162.40
  6. Step 6: Final answer
    x = 183,455.40

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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.