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Finding the Fourth Proportional to 351,740.59, 485,403.71 and 190,595.94

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Solution

The fourth proportional to 351,740.59, 485,403.71 and 190,595.94 is: 263,023.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,740.59 : 485,403.71 = 190,595.94 : x
  2. Step 2: Convert to fraction form
    351,740.59/485,403.71 = 190,595.94/x
  3. Step 3: Cross multiply
    351,740.59x = 485,403.71 × 190,595.94
  4. Step 4: Simplify right side
    351,740.59x = 92,515,973,613.69
  5. Step 5: Solve for x
    x = 92,515,973,613.69/351,740.59
  6. Step 6: Final answer
    x = 263,023.31

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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.