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Finding the Fourth Proportional to 132,655.35, 183,059.61 and 72,224.61

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Solution

The fourth proportional to 132,655.35, 183,059.61 and 72,224.61 is: 99,667.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,655.35 : 183,059.61 = 72,224.61 : x
  2. Step 2: Convert to fraction form
    132,655.35/183,059.61 = 72,224.61/x
  3. Step 3: Cross multiply
    132,655.35x = 183,059.61 × 72,224.61
  4. Step 4: Simplify right side
    132,655.35x = 13,221,408,939.00
  5. Step 5: Solve for x
    x = 13,221,408,939.00/132,655.35
  6. Step 6: Final answer
    x = 99,667.36

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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.