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Finding the Fourth Proportional to 303,671.80, 455,216.10 and 236,166.40

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Solution

The fourth proportional to 303,671.80, 455,216.10 and 236,166.40 is: 354,022.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,671.80 : 455,216.10 = 236,166.40 : x
  2. Step 2: Convert to fraction form
    303,671.80/455,216.10 = 236,166.40/x
  3. Step 3: Cross multiply
    303,671.80x = 455,216.10 × 236,166.40
  4. Step 4: Simplify right side
    303,671.80x = 107,506,747,559.04
  5. Step 5: Solve for x
    x = 107,506,747,559.04/303,671.80
  6. Step 6: Final answer
    x = 354,022.82

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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.