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Finding the Fourth Proportional to 303,405.88, 455,091.78 and 93,043.24

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Solution

The fourth proportional to 303,405.88, 455,091.78 and 93,043.24 is: 139,559.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,405.88 : 455,091.78 = 93,043.24 : x
  2. Step 2: Convert to fraction form
    303,405.88/455,091.78 = 93,043.24/x
  3. Step 3: Cross multiply
    303,405.88x = 455,091.78 × 93,043.24
  4. Step 4: Simplify right side
    303,405.88x = 42,343,213,708.57
  5. Step 5: Solve for x
    x = 42,343,213,708.57/303,405.88
  6. Step 6: Final answer
    x = 139,559.63

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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.