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Finding the Fourth Proportional to 372,364.18, 513,847.21 and 202,598.98

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Solution

The fourth proportional to 372,364.18, 513,847.21 and 202,598.98 is: 279,578.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,364.18 : 513,847.21 = 202,598.98 : x
  2. Step 2: Convert to fraction form
    372,364.18/513,847.21 = 202,598.98/x
  3. Step 3: Cross multiply
    372,364.18x = 513,847.21 × 202,598.98
  4. Step 4: Simplify right side
    372,364.18x = 104,104,920,621.85
  5. Step 5: Solve for x
    x = 104,104,920,621.85/372,364.18
  6. Step 6: Final answer
    x = 279,578.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.