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Finding the Fourth Proportional to 103,976,978.40, 155,965,467.60 and 95,914,821.60

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Solution

The fourth proportional to 103,976,978.40, 155,965,467.60 and 95,914,821.60 is: 143,872,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,976,978.40 : 155,965,467.60 = 95,914,821.60 : x
  2. Step 2: Convert to fraction form
    103,976,978.40/155,965,467.60 = 95,914,821.60/x
  3. Step 3: Cross multiply
    103,976,978.40x = 155,965,467.60 × 95,914,821.60
  4. Step 4: Simplify right side
    103,976,978.40x = 14,959,400,000,614,578
  5. Step 5: Solve for x
    x = 14,959,400,000,614,578/103,976,978.40
  6. Step 6: Final answer
    x = 143,872,232.40

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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.