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Finding the Fourth Proportional to 351,262.71, 526,680.50 and 137,774.79

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Solution

The fourth proportional to 351,262.71, 526,680.50 and 137,774.79 is: 206,578.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,262.71 : 526,680.50 = 137,774.79 : x
  2. Step 2: Convert to fraction form
    351,262.71/526,680.50 = 137,774.79/x
  3. Step 3: Cross multiply
    351,262.71x = 526,680.50 × 137,774.79
  4. Step 4: Simplify right side
    351,262.71x = 72,563,294,595.72
  5. Step 5: Solve for x
    x = 72,563,294,595.72/351,262.71
  6. Step 6: Final answer
    x = 206,578.42

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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.