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Finding the Fourth Proportional to 168,755.40, 253,133.10 and 154,977.30

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Solution

The fourth proportional to 168,755.40, 253,133.10 and 154,977.30 is: 232,465.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,755.40 : 253,133.10 = 154,977.30 : x
  2. Step 2: Convert to fraction form
    168,755.40/253,133.10 = 154,977.30/x
  3. Step 3: Cross multiply
    168,755.40x = 253,133.10 × 154,977.30
  4. Step 4: Simplify right side
    168,755.40x = 39,229,884,378.63
  5. Step 5: Solve for x
    x = 39,229,884,378.63/168,755.40
  6. Step 6: Final answer
    x = 232,465.95

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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.