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Finding the Fourth Proportional to 69,289.70, 103,675.05 and 49,345.30

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Solution

The fourth proportional to 69,289.70, 103,675.05 and 49,345.30 is: 73,833.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,289.70 : 103,675.05 = 49,345.30 : x
  2. Step 2: Convert to fraction form
    69,289.70/103,675.05 = 49,345.30/x
  3. Step 3: Cross multiply
    69,289.70x = 103,675.05 × 49,345.30
  4. Step 4: Simplify right side
    69,289.70x = 5,115,876,444.77
  5. Step 5: Solve for x
    x = 5,115,876,444.77/69,289.70
  6. Step 6: Final answer
    x = 73,833.14

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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.