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Finding the Fourth Proportional to 64,616,539.84, 96,925,649.04 and 21,485,741.44

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Solution

The fourth proportional to 64,616,539.84, 96,925,649.04 and 21,485,741.44 is: 32,228,891.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,616,539.84 : 96,925,649.04 = 21,485,741.44 : x
  2. Step 2: Convert to fraction form
    64,616,539.84/96,925,649.04 = 21,485,741.44/x
  3. Step 3: Cross multiply
    64,616,539.84x = 96,925,649.04 × 21,485,741.44
  4. Step 4: Simplify right side
    64,616,539.84x = 2,082,519,434,177,624.50
  5. Step 5: Solve for x
    x = 2,082,519,434,177,624.50/64,616,539.84
  6. Step 6: Final answer
    x = 32,228,891.23

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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.