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Finding the Fourth Proportional to 126,057.32, 188,971.54 and 62,896.76

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Solution

The fourth proportional to 126,057.32, 188,971.54 and 62,896.76 is: 94,288.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,057.32 : 188,971.54 = 62,896.76 : x
  2. Step 2: Convert to fraction form
    126,057.32/188,971.54 = 62,896.76/x
  3. Step 3: Cross multiply
    126,057.32x = 188,971.54 × 62,896.76
  4. Step 4: Simplify right side
    126,057.32x = 11,885,697,598.21
  5. Step 5: Solve for x
    x = 11,885,697,598.21/126,057.32
  6. Step 6: Final answer
    x = 94,288.04

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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.