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Finding the Fourth Proportional to 132,751.80, 183,222.54 and 76,200.12

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Solution

The fourth proportional to 132,751.80, 183,222.54 and 76,200.12 is: 105,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,751.80 : 183,222.54 = 76,200.12 : x
  2. Step 2: Convert to fraction form
    132,751.80/183,222.54 = 76,200.12/x
  3. Step 3: Cross multiply
    132,751.80x = 183,222.54 × 76,200.12
  4. Step 4: Simplify right side
    132,751.80x = 13,961,579,534.70
  5. Step 5: Solve for x
    x = 13,961,579,534.70/132,751.80
  6. Step 6: Final answer
    x = 105,170.55

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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.