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Finding the Fourth Proportional to 219,458.70, 329,297.40 and 124,761.60

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Solution

The fourth proportional to 219,458.70, 329,297.40 and 124,761.60 is: 187,204.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,458.70 : 329,297.40 = 124,761.60 : x
  2. Step 2: Convert to fraction form
    219,458.70/329,297.40 = 124,761.60/x
  3. Step 3: Cross multiply
    219,458.70x = 329,297.40 × 124,761.60
  4. Step 4: Simplify right side
    219,458.70x = 41,083,670,499.84
  5. Step 5: Solve for x
    x = 41,083,670,499.84/219,458.70
  6. Step 6: Final answer
    x = 187,204.57

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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.