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Finding the Fourth Proportional to 156,438,207.45, 219,466,986.75 and 156,438,207.45

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Solution

The fourth proportional to 156,438,207.45, 219,466,986.75 and 156,438,207.45 is: 219,466,986.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,438,207.45 : 219,466,986.75 = 156,438,207.45 : x
  2. Step 2: Convert to fraction form
    156,438,207.45/219,466,986.75 = 156,438,207.45/x
  3. Step 3: Cross multiply
    156,438,207.45x = 219,466,986.75 × 156,438,207.45
  4. Step 4: Simplify right side
    156,438,207.45x = 34,333,022,001,622,900
  5. Step 5: Solve for x
    x = 34,333,022,001,622,900/156,438,207.45
  6. Step 6: Final answer
    x = 219,466,986.75

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