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Finding the Fourth Proportional to 74,889,937.60, 104,987,470.40 and 74,889,937.60

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Solution

The fourth proportional to 74,889,937.60, 104,987,470.40 and 74,889,937.60 is: 104,987,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,889,937.60 : 104,987,470.40 = 74,889,937.60 : x
  2. Step 2: Convert to fraction form
    74,889,937.60/104,987,470.40 = 74,889,937.60/x
  3. Step 3: Cross multiply
    74,889,937.60x = 104,987,470.40 × 74,889,937.60
  4. Step 4: Simplify right side
    74,889,937.60x = 7,862,505,107,037,847
  5. Step 5: Solve for x
    x = 7,862,505,107,037,847/74,889,937.60
  6. Step 6: Final answer
    x = 104,987,470.40

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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.