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Finding the Fourth Proportional to 303,632.36, 455,726.32 and 153,975.94

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Solution

The fourth proportional to 303,632.36, 455,726.32 and 153,975.94 is: 231,104.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,632.36 : 455,726.32 = 153,975.94 : x
  2. Step 2: Convert to fraction form
    303,632.36/455,726.32 = 153,975.94/x
  3. Step 3: Cross multiply
    303,632.36x = 455,726.32 × 153,975.94
  4. Step 4: Simplify right side
    303,632.36x = 70,170,888,504.74
  5. Step 5: Solve for x
    x = 70,170,888,504.74/303,632.36
  6. Step 6: Final answer
    x = 231,104.78

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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.