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Finding the Fourth Proportional to 74,951.44, 103,433.88 and 40,959.76

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Solution

The fourth proportional to 74,951.44, 103,433.88 and 40,959.76 is: 56,524.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,951.44 : 103,433.88 = 40,959.76 : x
  2. Step 2: Convert to fraction form
    74,951.44/103,433.88 = 40,959.76/x
  3. Step 3: Cross multiply
    74,951.44x = 103,433.88 × 40,959.76
  4. Step 4: Simplify right side
    74,951.44x = 4,236,626,900.67
  5. Step 5: Solve for x
    x = 4,236,626,900.67/74,951.44
  6. Step 6: Final answer
    x = 56,524.96

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1.5x scale

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.