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Finding the Fourth Proportional to 118,511,718.30, 166,029,779.70 and 118,511,718.30

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Solution

The fourth proportional to 118,511,718.30, 166,029,779.70 and 118,511,718.30 is: 166,029,779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,511,718.30 : 166,029,779.70 = 118,511,718.30 : x
  2. Step 2: Convert to fraction form
    118,511,718.30/166,029,779.70 = 118,511,718.30/x
  3. Step 3: Cross multiply
    118,511,718.30x = 166,029,779.70 × 118,511,718.30
  4. Step 4: Simplify right side
    118,511,718.30x = 19,676,474,481,217,456
  5. Step 5: Solve for x
    x = 19,676,474,481,217,456/118,511,718.30
  6. Step 6: Final answer
    x = 166,029,779.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.