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Finding the Fourth Proportional to 445,810.68, 668,755.98 and 125,966.39

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Solution

The fourth proportional to 445,810.68, 668,755.98 and 125,966.39 is: 188,960.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,810.68 : 668,755.98 = 125,966.39 : x
  2. Step 2: Convert to fraction form
    445,810.68/668,755.98 = 125,966.39/x
  3. Step 3: Cross multiply
    445,810.68x = 668,755.98 × 125,966.39
  4. Step 4: Simplify right side
    445,810.68x = 84,240,773,247.73
  5. Step 5: Solve for x
    x = 84,240,773,247.73/445,810.68
  6. Step 6: Final answer
    x = 188,960.87

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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.