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Finding the Fourth Proportional to 23,183,985.80, 34,775,978.70 and 19,432,843.40

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Solution

The fourth proportional to 23,183,985.80, 34,775,978.70 and 19,432,843.40 is: 29,149,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,183,985.80 : 34,775,978.70 = 19,432,843.40 : x
  2. Step 2: Convert to fraction form
    23,183,985.80/34,775,978.70 = 19,432,843.40/x
  3. Step 3: Cross multiply
    23,183,985.80x = 34,775,978.70 × 19,432,843.40
  4. Step 4: Simplify right side
    23,183,985.80x = 675,796,148,158,835.62
  5. Step 5: Solve for x
    x = 675,796,148,158,835.62/23,183,985.80
  6. Step 6: Final answer
    x = 29,149,265.10

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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.