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Finding the Fourth Proportional to 218,625.63, 327,938.44 and 125,065.77

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Solution

The fourth proportional to 218,625.63, 327,938.44 and 125,065.77 is: 187,598.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,625.63 : 327,938.44 = 125,065.77 : x
  2. Step 2: Convert to fraction form
    218,625.63/327,938.44 = 125,065.77/x
  3. Step 3: Cross multiply
    218,625.63x = 327,938.44 × 125,065.77
  4. Step 4: Simplify right side
    218,625.63x = 41,013,871,871.51
  5. Step 5: Solve for x
    x = 41,013,871,871.51/218,625.63
  6. Step 6: Final answer
    x = 187,598.65

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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.