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Finding the Fourth Proportional to 69,408,729.60, 104,113,094.40 and 35,396,505.60

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Solution

The fourth proportional to 69,408,729.60, 104,113,094.40 and 35,396,505.60 is: 53,094,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,408,729.60 : 104,113,094.40 = 35,396,505.60 : x
  2. Step 2: Convert to fraction form
    69,408,729.60/104,113,094.40 = 35,396,505.60/x
  3. Step 3: Cross multiply
    69,408,729.60x = 104,113,094.40 × 35,396,505.60
  4. Step 4: Simplify right side
    69,408,729.60x = 3,685,239,728,962,929
  5. Step 5: Solve for x
    x = 3,685,239,728,962,929/69,408,729.60
  6. Step 6: Final answer
    x = 53,094,758.40

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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.