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Finding the Fourth Proportional to 178,207.92, 245,365.88 and 151,297.20

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Solution

The fourth proportional to 178,207.92, 245,365.88 and 151,297.20 is: 208,313.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,207.92 : 245,365.88 = 151,297.20 : x
  2. Step 2: Convert to fraction form
    178,207.92/245,365.88 = 151,297.20/x
  3. Step 3: Cross multiply
    178,207.92x = 245,365.88 × 151,297.20
  4. Step 4: Simplify right side
    178,207.92x = 37,123,170,619.54
  5. Step 5: Solve for x
    x = 37,123,170,619.54/178,207.92
  6. Step 6: Final answer
    x = 208,313.81

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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.