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Finding the Fourth Proportional to 119,136.51, 179,541.48 and 107,305.11

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Solution

The fourth proportional to 119,136.51, 179,541.48 and 107,305.11 is: 161,711.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,136.51 : 179,541.48 = 107,305.11 : x
  2. Step 2: Convert to fraction form
    119,136.51/179,541.48 = 107,305.11/x
  3. Step 3: Cross multiply
    119,136.51x = 179,541.48 × 107,305.11
  4. Step 4: Simplify right side
    119,136.51x = 19,265,718,260.96
  5. Step 5: Solve for x
    x = 19,265,718,260.96/119,136.51
  6. Step 6: Final answer
    x = 161,711.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.