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Finding the Fourth Proportional to 176,706.91, 243,837.33 and 105,073.09

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Solution

The fourth proportional to 176,706.91, 243,837.33 and 105,073.09 is: 144,990.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,706.91 : 243,837.33 = 105,073.09 : x
  2. Step 2: Convert to fraction form
    176,706.91/243,837.33 = 105,073.09/x
  3. Step 3: Cross multiply
    176,706.91x = 243,837.33 × 105,073.09
  4. Step 4: Simplify right side
    176,706.91x = 25,620,741,720.45
  5. Step 5: Solve for x
    x = 25,620,741,720.45/176,706.91
  6. Step 6: Final answer
    x = 144,990.04

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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.