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Finding the Fourth Proportional to 117,902.65, 176,742.79 and 58,682.34

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Solution

The fourth proportional to 117,902.65, 176,742.79 and 58,682.34 is: 87,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,902.65 : 176,742.79 = 58,682.34 : x
  2. Step 2: Convert to fraction form
    117,902.65/176,742.79 = 58,682.34/x
  3. Step 3: Cross multiply
    117,902.65x = 176,742.79 × 58,682.34
  4. Step 4: Simplify right side
    117,902.65x = 10,371,680,495.33
  5. Step 5: Solve for x
    x = 10,371,680,495.33/117,902.65
  6. Step 6: Final answer
    x = 87,968.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.