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Finding the Fourth Proportional to 75,124.37, 103,638.55 and 44,894.50

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Solution

The fourth proportional to 75,124.37, 103,638.55 and 44,894.50 is: 61,934.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,124.37 : 103,638.55 = 44,894.50 : x
  2. Step 2: Convert to fraction form
    75,124.37/103,638.55 = 44,894.50/x
  3. Step 3: Cross multiply
    75,124.37x = 103,638.55 × 44,894.50
  4. Step 4: Simplify right side
    75,124.37x = 4,652,800,882.98
  5. Step 5: Solve for x
    x = 4,652,800,882.98/75,124.37
  6. Step 6: Final answer
    x = 61,934.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.