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Finding the Fourth Proportional to 303,912.40, 455,868.60 and 93,614.80

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Solution

The fourth proportional to 303,912.40, 455,868.60 and 93,614.80 is: 140,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,912.40 : 455,868.60 = 93,614.80 : x
  2. Step 2: Convert to fraction form
    303,912.40/455,868.60 = 93,614.80/x
  3. Step 3: Cross multiply
    303,912.40x = 455,868.60 × 93,614.80
  4. Step 4: Simplify right side
    303,912.40x = 42,676,047,815.28
  5. Step 5: Solve for x
    x = 42,676,047,815.28/303,912.40
  6. Step 6: Final answer
    x = 140,422.20

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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.