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Finding the Fourth Proportional to 618,796.53, 928,195.61 and 169,521.32

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Solution

The fourth proportional to 618,796.53, 928,195.61 and 169,521.32 is: 254,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,796.53 : 928,195.61 = 169,521.32 : x
  2. Step 2: Convert to fraction form
    618,796.53/928,195.61 = 169,521.32/x
  3. Step 3: Cross multiply
    618,796.53x = 928,195.61 × 169,521.32
  4. Step 4: Simplify right side
    618,796.53x = 157,348,946,498.29
  5. Step 5: Solve for x
    x = 157,348,946,498.29/618,796.53
  6. Step 6: Final answer
    x = 254,282.21

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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.