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Finding the Fourth Proportional to 252,170.64, 348,033.78 and 143,306.64

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Solution

The fourth proportional to 252,170.64, 348,033.78 and 143,306.64 is: 197,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,170.64 : 348,033.78 = 143,306.64 : x
  2. Step 2: Convert to fraction form
    252,170.64/348,033.78 = 143,306.64/x
  3. Step 3: Cross multiply
    252,170.64x = 348,033.78 × 143,306.64
  4. Step 4: Simplify right side
    252,170.64x = 49,875,551,618.30
  5. Step 5: Solve for x
    x = 49,875,551,618.30/252,170.64
  6. Step 6: Final answer
    x = 197,784.93

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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.