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Finding the Fourth Proportional to 101,297,282, 139,790,373 and 54,887,498.96

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Solution

The fourth proportional to 101,297,282, 139,790,373 and 54,887,498.96 is: 75,744,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,297,282 : 139,790,373 = 54,887,498.96 : x
  2. Step 2: Convert to fraction form
    101,297,282/139,790,373 = 54,887,498.96/x
  3. Step 3: Cross multiply
    101,297,282x = 139,790,373 × 54,887,498.96
  4. Step 4: Simplify right side
    101,297,282x = 7,672,743,952,655,512
  5. Step 5: Solve for x
    x = 7,672,743,952,655,512/101,297,282
  6. Step 6: Final answer
    x = 75,744,815.67

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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.