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Finding the Fourth Proportional to 245,699.11, 368,550.71 and 68,219.96

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Solution

The fourth proportional to 245,699.11, 368,550.71 and 68,219.96 is: 102,330.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,699.11 : 368,550.71 = 68,219.96 : x
  2. Step 2: Convert to fraction form
    245,699.11/368,550.71 = 68,219.96/x
  3. Step 3: Cross multiply
    245,699.11x = 368,550.71 × 68,219.96
  4. Step 4: Simplify right side
    245,699.11x = 25,142,513,943.34
  5. Step 5: Solve for x
    x = 25,142,513,943.34/245,699.11
  6. Step 6: Final answer
    x = 102,330.51

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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.