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Finding the Fourth Proportional to 69,505,811.60, 104,258,717.40 and 64,131,040.40

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Solution

The fourth proportional to 69,505,811.60, 104,258,717.40 and 64,131,040.40 is: 96,196,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,505,811.60 : 104,258,717.40 = 64,131,040.40 : x
  2. Step 2: Convert to fraction form
    69,505,811.60/104,258,717.40 = 64,131,040.40/x
  3. Step 3: Cross multiply
    69,505,811.60x = 104,258,717.40 × 64,131,040.40
  4. Step 4: Simplify right side
    69,505,811.60x = 6,686,220,017,631,583
  5. Step 5: Solve for x
    x = 6,686,220,017,631,583/69,505,811.60
  6. Step 6: Final answer
    x = 96,196,560.60

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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.