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Finding the Fourth Proportional to 268,139.36, 401,744.46 and 162,737.48

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Solution

The fourth proportional to 268,139.36, 401,744.46 and 162,737.48 is: 243,824.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,139.36 : 401,744.46 = 162,737.48 : x
  2. Step 2: Convert to fraction form
    268,139.36/401,744.46 = 162,737.48/x
  3. Step 3: Cross multiply
    268,139.36x = 401,744.46 × 162,737.48
  4. Step 4: Simplify right side
    268,139.36x = 65,378,881,024.36
  5. Step 5: Solve for x
    x = 65,378,881,024.36/268,139.36
  6. Step 6: Final answer
    x = 243,824.26

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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.