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Finding the Fourth Proportional to 351,483.74, 527,116.55 and 126,814.98

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Solution

The fourth proportional to 351,483.74, 527,116.55 and 126,814.98 is: 190,183.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,483.74 : 527,116.55 = 126,814.98 : x
  2. Step 2: Convert to fraction form
    351,483.74/527,116.55 = 126,814.98/x
  3. Step 3: Cross multiply
    351,483.74x = 527,116.55 × 126,814.98
  4. Step 4: Simplify right side
    351,483.74x = 66,846,274,111.84
  5. Step 5: Solve for x
    x = 66,846,274,111.84/351,483.74
  6. Step 6: Final answer
    x = 190,183.12

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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.