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Finding the Fourth Proportional to 407,340.18, 611,063.94 and 151,137.90

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Solution

The fourth proportional to 407,340.18, 611,063.94 and 151,137.90 is: 226,726.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,340.18 : 611,063.94 = 151,137.90 : x
  2. Step 2: Convert to fraction form
    407,340.18/611,063.94 = 151,137.90/x
  3. Step 3: Cross multiply
    407,340.18x = 611,063.94 × 151,137.90
  4. Step 4: Simplify right side
    407,340.18x = 92,354,920,657.33
  5. Step 5: Solve for x
    x = 92,354,920,657.33/407,340.18
  6. Step 6: Final answer
    x = 226,726.76

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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.