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Finding the Fourth Proportional to 441,809.87, 662,752.85 and 121,961.80

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Solution

The fourth proportional to 441,809.87, 662,752.85 and 121,961.80 is: 182,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,809.87 : 662,752.85 = 121,961.80 : x
  2. Step 2: Convert to fraction form
    441,809.87/662,752.85 = 121,961.80/x
  3. Step 3: Cross multiply
    441,809.87x = 662,752.85 × 121,961.80
  4. Step 4: Simplify right side
    441,809.87x = 80,830,528,579.34
  5. Step 5: Solve for x
    x = 80,830,528,579.34/441,809.87
  6. Step 6: Final answer
    x = 182,953.20

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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.