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Finding the Fourth Proportional to 69,039.54, 103,487.49 and 46,854.72

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Solution

The fourth proportional to 69,039.54, 103,487.49 and 46,854.72 is: 70,233.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,039.54 : 103,487.49 = 46,854.72 : x
  2. Step 2: Convert to fraction form
    69,039.54/103,487.49 = 46,854.72/x
  3. Step 3: Cross multiply
    69,039.54x = 103,487.49 × 46,854.72
  4. Step 4: Simplify right side
    69,039.54x = 4,848,877,367.45
  5. Step 5: Solve for x
    x = 4,848,877,367.45/69,039.54
  6. Step 6: Final answer
    x = 70,233.34

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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.