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Finding the Fourth Proportional to 141,672.69, 195,502.01 and 81,199.98

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Solution

The fourth proportional to 141,672.69, 195,502.01 and 81,199.98 is: 112,052.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,672.69 : 195,502.01 = 81,199.98 : x
  2. Step 2: Convert to fraction form
    141,672.69/195,502.01 = 81,199.98/x
  3. Step 3: Cross multiply
    141,672.69x = 195,502.01 × 81,199.98
  4. Step 4: Simplify right side
    141,672.69x = 15,874,758,895.96
  5. Step 5: Solve for x
    x = 15,874,758,895.96/141,672.69
  6. Step 6: Final answer
    x = 112,052.36

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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.