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Finding the Fourth Proportional to 258,306.88, 356,493.36 and 150,903.76

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Solution

The fourth proportional to 258,306.88, 356,493.36 and 150,903.76 is: 208,264.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,306.88 : 356,493.36 = 150,903.76 : x
  2. Step 2: Convert to fraction form
    258,306.88/356,493.36 = 150,903.76/x
  3. Step 3: Cross multiply
    258,306.88x = 356,493.36 × 150,903.76
  4. Step 4: Simplify right side
    258,306.88x = 53,796,188,439.03
  5. Step 5: Solve for x
    x = 53,796,188,439.03/258,306.88
  6. Step 6: Final answer
    x = 208,264.64

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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.