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Finding the Fourth Proportional to 303,872.60, 455,765.70 and 93,531.80

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Solution

The fourth proportional to 303,872.60, 455,765.70 and 93,531.80 is: 140,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,872.60 : 455,765.70 = 93,531.80 : x
  2. Step 2: Convert to fraction form
    303,872.60/455,765.70 = 93,531.80/x
  3. Step 3: Cross multiply
    303,872.60x = 455,765.70 × 93,531.80
  4. Step 4: Simplify right side
    303,872.60x = 42,628,586,299.26
  5. Step 5: Solve for x
    x = 42,628,586,299.26/303,872.60
  6. Step 6: Final answer
    x = 140,284.40

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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.