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Finding the Fourth Proportional to 298,313.66, 411,579.96 and 169,230.71

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Solution

The fourth proportional to 298,313.66, 411,579.96 and 169,230.71 is: 233,485.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,313.66 : 411,579.96 = 169,230.71 : x
  2. Step 2: Convert to fraction form
    298,313.66/411,579.96 = 169,230.71/x
  3. Step 3: Cross multiply
    298,313.66x = 411,579.96 × 169,230.71
  4. Step 4: Simplify right side
    298,313.66x = 69,651,968,852.57
  5. Step 5: Solve for x
    x = 69,651,968,852.57/298,313.66
  6. Step 6: Final answer
    x = 233,485.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.