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Finding the Fourth Proportional to 452,405.57, 678,701.52 and 132,567.84

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Solution

The fourth proportional to 452,405.57, 678,701.52 and 132,567.84 is: 198,879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,405.57 : 678,701.52 = 132,567.84 : x
  2. Step 2: Convert to fraction form
    452,405.57/678,701.52 = 132,567.84/x
  3. Step 3: Cross multiply
    452,405.57x = 678,701.52 × 132,567.84
  4. Step 4: Simplify right side
    452,405.57x = 89,973,995,535.12
  5. Step 5: Solve for x
    x = 89,973,995,535.12/452,405.57
  6. Step 6: Final answer
    x = 198,879.06

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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.