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Finding the Fourth Proportional to 343,722.89, 474,342.71 and 190,770.94

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Solution

The fourth proportional to 343,722.89, 474,342.71 and 190,770.94 is: 263,266.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,722.89 : 474,342.71 = 190,770.94 : x
  2. Step 2: Convert to fraction form
    343,722.89/474,342.71 = 190,770.94/x
  3. Step 3: Cross multiply
    343,722.89x = 474,342.71 × 190,770.94
  4. Step 4: Simplify right side
    343,722.89x = 90,490,804,668.85
  5. Step 5: Solve for x
    x = 90,490,804,668.85/343,722.89
  6. Step 6: Final answer
    x = 263,266.74

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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.