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Finding the Fourth Proportional to 236,094.78, 325,801.29 and 128,662.50

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Solution

The fourth proportional to 236,094.78, 325,801.29 and 128,662.50 is: 177,549.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,094.78 : 325,801.29 = 128,662.50 : x
  2. Step 2: Convert to fraction form
    236,094.78/325,801.29 = 128,662.50/x
  3. Step 3: Cross multiply
    236,094.78x = 325,801.29 × 128,662.50
  4. Step 4: Simplify right side
    236,094.78x = 41,918,408,474.63
  5. Step 5: Solve for x
    x = 41,918,408,474.63/236,094.78
  6. Step 6: Final answer
    x = 177,549.07

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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.