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Finding the Fourth Proportional to 133,062.64, 183,624.80 and 72,633.68

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Solution

The fourth proportional to 133,062.64, 183,624.80 and 72,633.68 is: 100,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,062.64 : 183,624.80 = 72,633.68 : x
  2. Step 2: Convert to fraction form
    133,062.64/183,624.80 = 72,633.68/x
  3. Step 3: Cross multiply
    133,062.64x = 183,624.80 × 72,633.68
  4. Step 4: Simplify right side
    133,062.64x = 13,337,344,963.26
  5. Step 5: Solve for x
    x = 13,337,344,963.26/133,062.64
  6. Step 6: Final answer
    x = 100,233.58

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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.