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Finding the Fourth Proportional to 303,586.92, 418,986.85 and 176,262.51

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Solution

The fourth proportional to 303,586.92, 418,986.85 and 176,262.51 is: 243,263.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,586.92 : 418,986.85 = 176,262.51 : x
  2. Step 2: Convert to fraction form
    303,586.92/418,986.85 = 176,262.51/x
  3. Step 3: Cross multiply
    303,586.92x = 418,986.85 × 176,262.51
  4. Step 4: Simplify right side
    303,586.92x = 73,851,673,837.99
  5. Step 5: Solve for x
    x = 73,851,673,837.99/303,586.92
  6. Step 6: Final answer
    x = 243,263.69

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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.