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Finding the Fourth Proportional to 172,356.00, 258,534.08 and 54,036.57

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Solution

The fourth proportional to 172,356.00, 258,534.08 and 54,036.57 is: 81,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,356.00 : 258,534.08 = 54,036.57 : x
  2. Step 2: Convert to fraction form
    172,356.00/258,534.08 = 54,036.57/x
  3. Step 3: Cross multiply
    172,356.00x = 258,534.08 × 54,036.57
  4. Step 4: Simplify right side
    172,356.00x = 13,970,294,359.01
  5. Step 5: Solve for x
    x = 13,970,294,359.01/172,356.00
  6. Step 6: Final answer
    x = 81,054.88

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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.