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Finding the Fourth Proportional to 74,889,905.60, 104,987,425.60 and 74,889,905.60

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Solution

The fourth proportional to 74,889,905.60, 104,987,425.60 and 74,889,905.60 is: 104,987,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,889,905.60 : 104,987,425.60 = 74,889,905.60 : x
  2. Step 2: Convert to fraction form
    74,889,905.60/104,987,425.60 = 74,889,905.60/x
  3. Step 3: Cross multiply
    74,889,905.60x = 104,987,425.60 × 74,889,905.60
  4. Step 4: Simplify right side
    74,889,905.60x = 7,862,498,392,371,022
  5. Step 5: Solve for x
    x = 7,862,498,392,371,022/74,889,905.60
  6. Step 6: Final answer
    x = 104,987,425.60

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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.