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Finding the Fourth Proportional to 341,617.20, 512,579.40 and 154,532.40

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Solution

The fourth proportional to 341,617.20, 512,579.40 and 154,532.40 is: 231,868.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,617.20 : 512,579.40 = 154,532.40 : x
  2. Step 2: Convert to fraction form
    341,617.20/512,579.40 = 154,532.40/x
  3. Step 3: Cross multiply
    341,617.20x = 512,579.40 × 154,532.40
  4. Step 4: Simplify right side
    341,617.20x = 79,210,124,872.56
  5. Step 5: Solve for x
    x = 79,210,124,872.56/341,617.20
  6. Step 6: Final answer
    x = 231,868.08

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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.