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Finding the Fourth Proportional to 306,042.60, 459,063.90 and 118,932.60

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Solution

The fourth proportional to 306,042.60, 459,063.90 and 118,932.60 is: 178,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,042.60 : 459,063.90 = 118,932.60 : x
  2. Step 2: Convert to fraction form
    306,042.60/459,063.90 = 118,932.60/x
  3. Step 3: Cross multiply
    306,042.60x = 459,063.90 × 118,932.60
  4. Step 4: Simplify right side
    306,042.60x = 54,597,663,193.14
  5. Step 5: Solve for x
    x = 54,597,663,193.14/306,042.60
  6. Step 6: Final answer
    x = 178,398.90

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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.