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Finding the Fourth Proportional to 251,568.81, 347,143.94 and 148,186.59

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Solution

The fourth proportional to 251,568.81, 347,143.94 and 148,186.59 is: 204,485.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,568.81 : 347,143.94 = 148,186.59 : x
  2. Step 2: Convert to fraction form
    251,568.81/347,143.94 = 148,186.59/x
  3. Step 3: Cross multiply
    251,568.81x = 347,143.94 × 148,186.59
  4. Step 4: Simplify right side
    251,568.81x = 51,442,076,707.76
  5. Step 5: Solve for x
    x = 51,442,076,707.76/251,568.81
  6. Step 6: Final answer
    x = 204,485.11

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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.