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Finding the Fourth Proportional to 133,238.56, 183,869.16 and 73,622.56

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Solution

The fourth proportional to 133,238.56, 183,869.16 and 73,622.56 is: 101,599.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,238.56 : 183,869.16 = 73,622.56 : x
  2. Step 2: Convert to fraction form
    133,238.56/183,869.16 = 73,622.56/x
  3. Step 3: Cross multiply
    133,238.56x = 183,869.16 × 73,622.56
  4. Step 4: Simplify right side
    133,238.56x = 13,536,918,264.25
  5. Step 5: Solve for x
    x = 13,536,918,264.25/133,238.56
  6. Step 6: Final answer
    x = 101,599.10

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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.