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Finding the Fourth Proportional to 323,085.86, 484,645.08 and 123,423.56

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Solution

The fourth proportional to 323,085.86, 484,645.08 and 123,423.56 is: 185,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,085.86 : 484,645.08 = 123,423.56 : x
  2. Step 2: Convert to fraction form
    323,085.86/484,645.08 = 123,423.56/x
  3. Step 3: Cross multiply
    323,085.86x = 484,645.08 × 123,423.56
  4. Step 4: Simplify right side
    323,085.86x = 59,816,621,110.08
  5. Step 5: Solve for x
    x = 59,816,621,110.08/323,085.86
  6. Step 6: Final answer
    x = 185,141.56

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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.