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Finding the Fourth Proportional to 65,491,444.80, 98,237,458.80 and 16,965,851.40

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Solution

The fourth proportional to 65,491,444.80, 98,237,458.80 and 16,965,851.40 is: 25,448,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,491,444.80 : 98,237,458.80 = 16,965,851.40 : x
  2. Step 2: Convert to fraction form
    65,491,444.80/98,237,458.80 = 16,965,851.40/x
  3. Step 3: Cross multiply
    65,491,444.80x = 98,237,458.80 × 16,965,851.40
  4. Step 4: Simplify right side
    65,491,444.80x = 1,666,682,127,914,422
  5. Step 5: Solve for x
    x = 1,666,682,127,914,422/65,491,444.80
  6. Step 6: Final answer
    x = 25,448,852.64

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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.