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Finding the Fourth Proportional to 245,428.48, 368,143.24 and 67,936

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Solution

The fourth proportional to 245,428.48, 368,143.24 and 67,936 is: 101,904.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,428.48 : 368,143.24 = 67,936 : x
  2. Step 2: Convert to fraction form
    245,428.48/368,143.24 = 67,936/x
  3. Step 3: Cross multiply
    245,428.48x = 368,143.24 × 67,936
  4. Step 4: Simplify right side
    245,428.48x = 25,010,179,152.64
  5. Step 5: Solve for x
    x = 25,010,179,152.64/245,428.48
  6. Step 6: Final answer
    x = 101,904.14

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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.