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Finding the Fourth Proportional to 356,672.58, 535,010.91 and 90,433.68

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Solution

The fourth proportional to 356,672.58, 535,010.91 and 90,433.68 is: 135,651.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,672.58 : 535,010.91 = 90,433.68 : x
  2. Step 2: Convert to fraction form
    356,672.58/535,010.91 = 90,433.68/x
  3. Step 3: Cross multiply
    356,672.58x = 535,010.91 × 90,433.68
  4. Step 4: Simplify right side
    356,672.58x = 48,383,005,431.45
  5. Step 5: Solve for x
    x = 48,383,005,431.45/356,672.58
  6. Step 6: Final answer
    x = 135,651.04

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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.