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Finding the Fourth Proportional to 132,866.75, 183,363.41 and 76,281.77

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Solution

The fourth proportional to 132,866.75, 183,363.41 and 76,281.77 is: 105,273.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,866.75 : 183,363.41 = 76,281.77 : x
  2. Step 2: Convert to fraction form
    132,866.75/183,363.41 = 76,281.77/x
  3. Step 3: Cross multiply
    132,866.75x = 183,363.41 × 76,281.77
  4. Step 4: Simplify right side
    132,866.75x = 13,987,285,468.04
  5. Step 5: Solve for x
    x = 13,987,285,468.04/132,866.75
  6. Step 6: Final answer
    x = 105,273.03

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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.