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Finding the Fourth Proportional to 303,926.40, 455,889.60 and 93,628.80

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Solution

The fourth proportional to 303,926.40, 455,889.60 and 93,628.80 is: 140,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,926.40 : 455,889.60 = 93,628.80 : x
  2. Step 2: Convert to fraction form
    303,926.40/455,889.60 = 93,628.80/x
  3. Step 3: Cross multiply
    303,926.40x = 455,889.60 × 93,628.80
  4. Step 4: Simplify right side
    303,926.40x = 42,684,396,180.48
  5. Step 5: Solve for x
    x = 42,684,396,180.48/303,926.40
  6. Step 6: Final answer
    x = 140,443.20

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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.