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Finding the Fourth Proportional to 351,056.86, 484,457.41 and 189,911.86

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Solution

The fourth proportional to 351,056.86, 484,457.41 and 189,911.86 is: 262,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,056.86 : 484,457.41 = 189,911.86 : x
  2. Step 2: Convert to fraction form
    351,056.86/484,457.41 = 189,911.86/x
  3. Step 3: Cross multiply
    351,056.86x = 484,457.41 × 189,911.86
  4. Step 4: Simplify right side
    351,056.86x = 92,004,207,823.88
  5. Step 5: Solve for x
    x = 92,004,207,823.88/351,056.86
  6. Step 6: Final answer
    x = 262,077.80

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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.