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Finding the Fourth Proportional to 84,827,761.80, 127,157,661.90 and 41,661,630.60

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Solution

The fourth proportional to 84,827,761.80, 127,157,661.90 and 41,661,630.60 is: 62,451,200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,827,761.80 : 127,157,661.90 = 41,661,630.60 : x
  2. Step 2: Convert to fraction form
    84,827,761.80/127,157,661.90 = 41,661,630.60/x
  3. Step 3: Cross multiply
    84,827,761.80x = 127,157,661.90 × 41,661,630.60
  4. Step 4: Simplify right side
    84,827,761.80x = 5,297,595,538,037,495
  5. Step 5: Solve for x
    x = 5,297,595,538,037,495/84,827,761.80
  6. Step 6: Final answer
    x = 62,451,200.24

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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.