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Finding the Fourth Proportional to 94,745,117.80, 142,117,676.70 and 80,874,507.70

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Solution

The fourth proportional to 94,745,117.80, 142,117,676.70 and 80,874,507.70 is: 121,311,761.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,745,117.80 : 142,117,676.70 = 80,874,507.70 : x
  2. Step 2: Convert to fraction form
    94,745,117.80/142,117,676.70 = 80,874,507.70/x
  3. Step 3: Cross multiply
    94,745,117.80x = 142,117,676.70 × 80,874,507.70
  4. Step 4: Simplify right side
    94,745,117.80x = 11,493,697,138,580,260
  5. Step 5: Solve for x
    x = 11,493,697,138,580,260/94,745,117.80
  6. Step 6: Final answer
    x = 121,311,761.55

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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.