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Finding the Fourth Proportional to 452,694.60, 679,112.34 and 137,076.36

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Solution

The fourth proportional to 452,694.60, 679,112.34 and 137,076.36 is: 205,635.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,694.60 : 679,112.34 = 137,076.36 : x
  2. Step 2: Convert to fraction form
    452,694.60/679,112.34 = 137,076.36/x
  3. Step 3: Cross multiply
    452,694.60x = 679,112.34 × 137,076.36
  4. Step 4: Simplify right side
    452,694.60x = 93,090,247,598.28
  5. Step 5: Solve for x
    x = 93,090,247,598.28/452,694.60
  6. Step 6: Final answer
    x = 205,635.87

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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.