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Finding the Fourth Proportional to 452,356.46, 678,390.87 and 148,680.57

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Solution

The fourth proportional to 452,356.46, 678,390.87 and 148,680.57 is: 222,973.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,356.46 : 678,390.87 = 148,680.57 : x
  2. Step 2: Convert to fraction form
    452,356.46/678,390.87 = 148,680.57/x
  3. Step 3: Cross multiply
    452,356.46x = 678,390.87 × 148,680.57
  4. Step 4: Simplify right side
    452,356.46x = 100,863,541,791.95
  5. Step 5: Solve for x
    x = 100,863,541,791.95/452,356.46
  6. Step 6: Final answer
    x = 222,973.59

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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.