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Finding the Fourth Proportional to 618,783.06, 928,175.39 and 169,507.88

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Solution

The fourth proportional to 618,783.06, 928,175.39 and 169,507.88 is: 254,262.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,783.06 : 928,175.39 = 169,507.88 : x
  2. Step 2: Convert to fraction form
    618,783.06/928,175.39 = 169,507.88/x
  3. Step 3: Cross multiply
    618,783.06x = 928,175.39 × 169,507.88
  4. Step 4: Simplify right side
    618,783.06x = 157,333,038,409.97
  5. Step 5: Solve for x
    x = 157,333,038,409.97/618,783.06
  6. Step 6: Final answer
    x = 254,262.03

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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.