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Finding the Fourth Proportional to 65,197,628.80, 97,725,019.20 and 32,797,859.20

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Solution

The fourth proportional to 65,197,628.80, 97,725,019.20 and 32,797,859.20 is: 49,160,858.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,197,628.80 : 97,725,019.20 = 32,797,859.20 : x
  2. Step 2: Convert to fraction form
    65,197,628.80/97,725,019.20 = 32,797,859.20/x
  3. Step 3: Cross multiply
    65,197,628.80x = 97,725,019.20 × 32,797,859.20
  4. Step 4: Simplify right side
    65,197,628.80x = 3,205,171,420,038,896.50
  5. Step 5: Solve for x
    x = 3,205,171,420,038,896.50/65,197,628.80
  6. Step 6: Final answer
    x = 49,160,858.75

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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.