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Finding the Fourth Proportional to 618,787.76, 928,182.37 and 169,512.50

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Solution

The fourth proportional to 618,787.76, 928,182.37 and 169,512.50 is: 254,268.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,787.76 : 928,182.37 = 169,512.50 : x
  2. Step 2: Convert to fraction form
    618,787.76/928,182.37 = 169,512.50/x
  3. Step 3: Cross multiply
    618,787.76x = 928,182.37 × 169,512.50
  4. Step 4: Simplify right side
    618,787.76x = 157,338,513,994.63
  5. Step 5: Solve for x
    x = 157,338,513,994.63/618,787.76
  6. Step 6: Final answer
    x = 254,268.95

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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.