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Finding the Fourth Proportional to 170,209.53, 255,359.43 and 51,881.94

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Solution

The fourth proportional to 170,209.53, 255,359.43 and 51,881.94 is: 77,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,209.53 : 255,359.43 = 51,881.94 : x
  2. Step 2: Convert to fraction form
    170,209.53/255,359.43 = 51,881.94/x
  3. Step 3: Cross multiply
    170,209.53x = 255,359.43 × 51,881.94
  4. Step 4: Simplify right side
    170,209.53x = 13,248,542,625.69
  5. Step 5: Solve for x
    x = 13,248,542,625.69/170,209.53
  6. Step 6: Final answer
    x = 77,836.67

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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.