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Finding the Fourth Proportional to 75,274.17, 103,878.19 and 43,443.07

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Solution

The fourth proportional to 75,274.17, 103,878.19 and 43,443.07 is: 59,951.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,274.17 : 103,878.19 = 43,443.07 : x
  2. Step 2: Convert to fraction form
    75,274.17/103,878.19 = 43,443.07/x
  3. Step 3: Cross multiply
    75,274.17x = 103,878.19 × 43,443.07
  4. Step 4: Simplify right side
    75,274.17x = 4,512,787,479.64
  5. Step 5: Solve for x
    x = 4,512,787,479.64/75,274.17
  6. Step 6: Final answer
    x = 59,951.34

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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.