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Finding the Fourth Proportional to 351,681.19, 527,566.49 and 111,709.48

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Solution

The fourth proportional to 351,681.19, 527,566.49 and 111,709.48 is: 167,578.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,681.19 : 527,566.49 = 111,709.48 : x
  2. Step 2: Convert to fraction form
    351,681.19/527,566.49 = 111,709.48/x
  3. Step 3: Cross multiply
    351,681.19x = 527,566.49 × 111,709.48
  4. Step 4: Simplify right side
    351,681.19x = 58,934,178,212.87
  5. Step 5: Solve for x
    x = 58,934,178,212.87/351,681.19
  6. Step 6: Final answer
    x = 167,578.42

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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.