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Finding the Fourth Proportional to 75,286,112.30, 112,929,168.45 and 44,978,374.70

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Solution

The fourth proportional to 75,286,112.30, 112,929,168.45 and 44,978,374.70 is: 67,467,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,286,112.30 : 112,929,168.45 = 44,978,374.70 : x
  2. Step 2: Convert to fraction form
    75,286,112.30/112,929,168.45 = 44,978,374.70/x
  3. Step 3: Cross multiply
    75,286,112.30x = 112,929,168.45 × 44,978,374.70
  4. Step 4: Simplify right side
    75,286,112.30x = 5,079,370,453,103,519
  5. Step 5: Solve for x
    x = 5,079,370,453,103,519/75,286,112.30
  6. Step 6: Final answer
    x = 67,467,562.05

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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.