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Finding the Fourth Proportional to 452,411.33, 678,616.54 and 115,451.98

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Solution

The fourth proportional to 452,411.33, 678,616.54 and 115,451.98 is: 173,177.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,411.33 : 678,616.54 = 115,451.98 : x
  2. Step 2: Convert to fraction form
    452,411.33/678,616.54 = 115,451.98/x
  3. Step 3: Cross multiply
    452,411.33x = 678,616.54 × 115,451.98
  4. Step 4: Simplify right side
    452,411.33x = 78,347,621,218.58
  5. Step 5: Solve for x
    x = 78,347,621,218.58/452,411.33
  6. Step 6: Final answer
    x = 173,177.85

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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.