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Finding the Fourth Proportional to 265,080.15, 397,624.34 and 251,621.90

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Solution

The fourth proportional to 265,080.15, 397,624.34 and 251,621.90 is: 377,436.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,080.15 : 397,624.34 = 251,621.90 : x
  2. Step 2: Convert to fraction form
    265,080.15/397,624.34 = 251,621.90/x
  3. Step 3: Cross multiply
    265,080.15x = 397,624.34 × 251,621.90
  4. Step 4: Simplify right side
    265,080.15x = 100,050,988,670.82
  5. Step 5: Solve for x
    x = 100,050,988,670.82/265,080.15
  6. Step 6: Final answer
    x = 377,436.74

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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.