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Finding the Fourth Proportional to 123,088.70, 184,979.28 and 73,177.67

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Solution

The fourth proportional to 123,088.70, 184,979.28 and 73,177.67 is: 109,972.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,088.70 : 184,979.28 = 73,177.67 : x
  2. Step 2: Convert to fraction form
    123,088.70/184,979.28 = 73,177.67/x
  3. Step 3: Cross multiply
    123,088.70x = 184,979.28 × 73,177.67
  4. Step 4: Simplify right side
    123,088.70x = 13,536,352,708.68
  5. Step 5: Solve for x
    x = 13,536,352,708.68/123,088.70
  6. Step 6: Final answer
    x = 109,972.34

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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.