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Finding the Fourth Proportional to 252,637.76, 348,627.86 and 143,731.84

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Solution

The fourth proportional to 252,637.76, 348,627.86 and 143,731.84 is: 198,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,637.76 : 348,627.86 = 143,731.84 : x
  2. Step 2: Convert to fraction form
    252,637.76/348,627.86 = 143,731.84/x
  3. Step 3: Cross multiply
    252,637.76x = 348,627.86 × 143,731.84
  4. Step 4: Simplify right side
    252,637.76x = 50,108,923,793.06
  5. Step 5: Solve for x
    x = 50,108,923,793.06/252,637.76
  6. Step 6: Final answer
    x = 198,342.97

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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.