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Finding the Fourth Proportional to 220,854.80, 331,004.27 and 119,648.95

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Solution

The fourth proportional to 220,854.80, 331,004.27 and 119,648.95 is: 179,322.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,854.80 : 331,004.27 = 119,648.95 : x
  2. Step 2: Convert to fraction form
    220,854.80/331,004.27 = 119,648.95/x
  3. Step 3: Cross multiply
    220,854.80x = 331,004.27 × 119,648.95
  4. Step 4: Simplify right side
    220,854.80x = 39,604,312,822.63
  5. Step 5: Solve for x
    x = 39,604,312,822.63/220,854.80
  6. Step 6: Final answer
    x = 179,322.85

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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.