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Finding the Fourth Proportional to 303,476.80, 455,494.76 and 153,823.23

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Solution

The fourth proportional to 303,476.80, 455,494.76 and 153,823.23 is: 230,876.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,476.80 : 455,494.76 = 153,823.23 : x
  2. Step 2: Convert to fraction form
    303,476.80/455,494.76 = 153,823.23/x
  3. Step 3: Cross multiply
    303,476.80x = 455,494.76 × 153,823.23
  4. Step 4: Simplify right side
    303,476.80x = 70,065,675,231.27
  5. Step 5: Solve for x
    x = 70,065,675,231.27/303,476.80
  6. Step 6: Final answer
    x = 230,876.55

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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.