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Finding the Fourth Proportional to 159,243.04, 219,790.74 and 124,719.04

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Solution

The fourth proportional to 159,243.04, 219,790.74 and 124,719.04 is: 172,139.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,243.04 : 219,790.74 = 124,719.04 : x
  2. Step 2: Convert to fraction form
    159,243.04/219,790.74 = 124,719.04/x
  3. Step 3: Cross multiply
    159,243.04x = 219,790.74 × 124,719.04
  4. Step 4: Simplify right side
    159,243.04x = 27,412,090,093.69
  5. Step 5: Solve for x
    x = 27,412,090,093.69/159,243.04
  6. Step 6: Final answer
    x = 172,139.96

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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.