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Finding the Fourth Proportional to 69,374.37, 103,893.88 and 39,702.25

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Solution

The fourth proportional to 69,374.37, 103,893.88 and 39,702.25 is: 59,457.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,374.37 : 103,893.88 = 39,702.25 : x
  2. Step 2: Convert to fraction form
    69,374.37/103,893.88 = 39,702.25/x
  3. Step 3: Cross multiply
    69,374.37x = 103,893.88 × 39,702.25
  4. Step 4: Simplify right side
    69,374.37x = 4,124,820,079.25
  5. Step 5: Solve for x
    x = 4,124,820,079.25/69,374.37
  6. Step 6: Final answer
    x = 59,457.41

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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.