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Finding the Fourth Proportional to 70,896.02, 97,836.54 and 39,064.64

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Solution

The fourth proportional to 70,896.02, 97,836.54 and 39,064.64 is: 53,909.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,896.02 : 97,836.54 = 39,064.64 : x
  2. Step 2: Convert to fraction form
    70,896.02/97,836.54 = 39,064.64/x
  3. Step 3: Cross multiply
    70,896.02x = 97,836.54 × 39,064.64
  4. Step 4: Simplify right side
    70,896.02x = 3,821,949,213.95
  5. Step 5: Solve for x
    x = 3,821,949,213.95/70,896.02
  6. Step 6: Final answer
    x = 53,909.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.