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Finding the Fourth Proportional to 183,422.64, 275,158.44 and 72,588.72

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Solution

The fourth proportional to 183,422.64, 275,158.44 and 72,588.72 is: 108,892.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,422.64 : 275,158.44 = 72,588.72 : x
  2. Step 2: Convert to fraction form
    183,422.64/275,158.44 = 72,588.72/x
  3. Step 3: Cross multiply
    183,422.64x = 275,158.44 × 72,588.72
  4. Step 4: Simplify right side
    183,422.64x = 19,973,398,956.80
  5. Step 5: Solve for x
    x = 19,973,398,956.80/183,422.64
  6. Step 6: Final answer
    x = 108,892.77

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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.