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Finding the Fourth Proportional to 251,551.92, 347,091.30 and 144,155.64

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Solution

The fourth proportional to 251,551.92, 347,091.30 and 144,155.64 is: 198,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,551.92 : 347,091.30 = 144,155.64 : x
  2. Step 2: Convert to fraction form
    251,551.92/347,091.30 = 144,155.64/x
  3. Step 3: Cross multiply
    251,551.92x = 347,091.30 × 144,155.64
  4. Step 4: Simplify right side
    251,551.92x = 50,035,168,489.93
  5. Step 5: Solve for x
    x = 50,035,168,489.93/251,551.92
  6. Step 6: Final answer
    x = 198,905.93

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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.