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Finding the Fourth Proportional to 80,588.90, 120,883.37 and 25,184.90

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Solution

The fourth proportional to 80,588.90, 120,883.37 and 25,184.90 is: 37,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,588.90 : 120,883.37 = 25,184.90 : x
  2. Step 2: Convert to fraction form
    80,588.90/120,883.37 = 25,184.90/x
  3. Step 3: Cross multiply
    80,588.90x = 120,883.37 × 25,184.90
  4. Step 4: Simplify right side
    80,588.90x = 3,044,434,854.77
  5. Step 5: Solve for x
    x = 3,044,434,854.77/80,588.90
  6. Step 6: Final answer
    x = 37,777.35

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1.5x scale

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.