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Finding the Fourth Proportional to 351,779.55, 527,663.70 and 111,889.98

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Solution

The fourth proportional to 351,779.55, 527,663.70 and 111,889.98 is: 167,833.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,779.55 : 527,663.70 = 111,889.98 : x
  2. Step 2: Convert to fraction form
    351,779.55/527,663.70 = 111,889.98/x
  3. Step 3: Cross multiply
    351,779.55x = 527,663.70 × 111,889.98
  4. Step 4: Simplify right side
    351,779.55x = 59,040,280,839.73
  5. Step 5: Solve for x
    x = 59,040,280,839.73/351,779.55
  6. Step 6: Final answer
    x = 167,833.18

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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.