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Finding the Fourth Proportional to 195,458.70, 269,761.95 and 123,845.40

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Solution

The fourth proportional to 195,458.70, 269,761.95 and 123,845.40 is: 170,924.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,458.70 : 269,761.95 = 123,845.40 : x
  2. Step 2: Convert to fraction form
    195,458.70/269,761.95 = 123,845.40/x
  3. Step 3: Cross multiply
    195,458.70x = 269,761.95 × 123,845.40
  4. Step 4: Simplify right side
    195,458.70x = 33,408,776,602.53
  5. Step 5: Solve for x
    x = 33,408,776,602.53/195,458.70
  6. Step 6: Final answer
    x = 170,924.99

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1.5x scale

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.