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Finding the Fourth Proportional to 103,689.55, 155,495.44 and 44,494.75

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Solution

The fourth proportional to 103,689.55, 155,495.44 and 44,494.75 is: 66,725.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,689.55 : 155,495.44 = 44,494.75 : x
  2. Step 2: Convert to fraction form
    103,689.55/155,495.44 = 44,494.75/x
  3. Step 3: Cross multiply
    103,689.55x = 155,495.44 × 44,494.75
  4. Step 4: Simplify right side
    103,689.55x = 6,918,730,728.94
  5. Step 5: Solve for x
    x = 6,918,730,728.94/103,689.55
  6. Step 6: Final answer
    x = 66,725.44

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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.