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Finding the Fourth Proportional to 364,180.85, 545,212.53 and 211,913.86

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Solution

The fourth proportional to 364,180.85, 545,212.53 and 211,913.86 is: 317,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,180.85 : 545,212.53 = 211,913.86 : x
  2. Step 2: Convert to fraction form
    364,180.85/545,212.53 = 211,913.86/x
  3. Step 3: Cross multiply
    364,180.85x = 545,212.53 × 211,913.86
  4. Step 4: Simplify right side
    364,180.85x = 115,538,090,389.63
  5. Step 5: Solve for x
    x = 115,538,090,389.63/364,180.85
  6. Step 6: Final answer
    x = 317,254.72

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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.