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Finding the Fourth Proportional to 122,339.70, 183,385.62 and 82,900.80

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Solution

The fourth proportional to 122,339.70, 183,385.62 and 82,900.80 is: 124,267.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,339.70 : 183,385.62 = 82,900.80 : x
  2. Step 2: Convert to fraction form
    122,339.70/183,385.62 = 82,900.80/x
  3. Step 3: Cross multiply
    122,339.70x = 183,385.62 × 82,900.80
  4. Step 4: Simplify right side
    122,339.70x = 15,202,814,606.50
  5. Step 5: Solve for x
    x = 15,202,814,606.50/122,339.70
  6. Step 6: Final answer
    x = 124,267.22

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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.