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Finding the Fourth Proportional to 143,882.96, 197,502.10 and 127,611.68

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Solution

The fourth proportional to 143,882.96, 197,502.10 and 127,611.68 is: 175,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,882.96 : 197,502.10 = 127,611.68 : x
  2. Step 2: Convert to fraction form
    143,882.96/197,502.10 = 127,611.68/x
  3. Step 3: Cross multiply
    143,882.96x = 197,502.10 × 127,611.68
  4. Step 4: Simplify right side
    143,882.96x = 25,203,574,784.53
  5. Step 5: Solve for x
    x = 25,203,574,784.53/143,882.96
  6. Step 6: Final answer
    x = 175,167.20

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.