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Finding the Fourth Proportional to 238,485.68, 329,088.84 and 131,054.48

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Solution

The fourth proportional to 238,485.68, 329,088.84 and 131,054.48 is: 180,843.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,485.68 : 329,088.84 = 131,054.48 : x
  2. Step 2: Convert to fraction form
    238,485.68/329,088.84 = 131,054.48/x
  3. Step 3: Cross multiply
    238,485.68x = 329,088.84 × 131,054.48
  4. Step 4: Simplify right side
    238,485.68x = 43,128,566,800.00
  5. Step 5: Solve for x
    x = 43,128,566,800.00/238,485.68
  6. Step 6: Final answer
    x = 180,843.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.