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Finding the Fourth Proportional to 245,802.12, 368,922.96 and 125,940.84

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Solution

The fourth proportional to 245,802.12, 368,922.96 and 125,940.84 is: 189,023.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,802.12 : 368,922.96 = 125,940.84 : x
  2. Step 2: Convert to fraction form
    245,802.12/368,922.96 = 125,940.84/x
  3. Step 3: Cross multiply
    245,802.12x = 368,922.96 × 125,940.84
  4. Step 4: Simplify right side
    245,802.12x = 46,462,467,477.69
  5. Step 5: Solve for x
    x = 46,462,467,477.69/245,802.12
  6. Step 6: Final answer
    x = 189,023.87

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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.