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Finding the Fourth Proportional to 254,826.40, 382,316.40 and 136,554.40

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Solution

The fourth proportional to 254,826.40, 382,316.40 and 136,554.40 is: 204,872.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,826.40 : 382,316.40 = 136,554.40 : x
  2. Step 2: Convert to fraction form
    254,826.40/382,316.40 = 136,554.40/x
  3. Step 3: Cross multiply
    254,826.40x = 382,316.40 × 136,554.40
  4. Step 4: Simplify right side
    254,826.40x = 52,206,986,612.16
  5. Step 5: Solve for x
    x = 52,206,986,612.16/254,826.40
  6. Step 6: Final answer
    x = 204,872.75

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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.