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Finding the Fourth Proportional to 618,787.84, 928,182.57 and 169,512.70

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Solution

The fourth proportional to 618,787.84, 928,182.57 and 169,512.70 is: 254,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,787.84 : 928,182.57 = 169,512.70 : x
  2. Step 2: Convert to fraction form
    618,787.84/928,182.57 = 169,512.70/x
  3. Step 3: Cross multiply
    618,787.84x = 928,182.57 × 169,512.70
  4. Step 4: Simplify right side
    618,787.84x = 157,338,733,533.64
  5. Step 5: Solve for x
    x = 157,338,733,533.64/618,787.84
  6. Step 6: Final answer
    x = 254,269.27

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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.