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Finding the Fourth Proportional to 237,395.81, 327,606.32 and 129,972.80

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Solution

The fourth proportional to 237,395.81, 327,606.32 and 129,972.80 is: 179,362.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,395.81 : 327,606.32 = 129,972.80 : x
  2. Step 2: Convert to fraction form
    237,395.81/327,606.32 = 129,972.80/x
  3. Step 3: Cross multiply
    237,395.81x = 327,606.32 × 129,972.80
  4. Step 4: Simplify right side
    237,395.81x = 42,579,911,852.04
  5. Step 5: Solve for x
    x = 42,579,911,852.04/237,395.81
  6. Step 6: Final answer
    x = 179,362.52

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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.