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Finding the Fourth Proportional to 178,191.51, 245,904.26 and 106,571.54

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Solution

The fourth proportional to 178,191.51, 245,904.26 and 106,571.54 is: 147,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,191.51 : 245,904.26 = 106,571.54 : x
  2. Step 2: Convert to fraction form
    178,191.51/245,904.26 = 106,571.54/x
  3. Step 3: Cross multiply
    178,191.51x = 245,904.26 × 106,571.54
  4. Step 4: Simplify right side
    178,191.51x = 26,206,395,680.76
  5. Step 5: Solve for x
    x = 26,206,395,680.76/178,191.51
  6. Step 6: Final answer
    x = 147,068.71

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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.