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Finding the Fourth Proportional to 356,257.56, 534,336.90 and 90,001.68

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Solution

The fourth proportional to 356,257.56, 534,336.90 and 90,001.68 is: 134,990.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,257.56 : 534,336.90 = 90,001.68 : x
  2. Step 2: Convert to fraction form
    356,257.56/534,336.90 = 90,001.68/x
  3. Step 3: Cross multiply
    356,257.56x = 534,336.90 × 90,001.68
  4. Step 4: Simplify right side
    356,257.56x = 48,091,218,685.99
  5. Step 5: Solve for x
    x = 48,091,218,685.99/356,257.56
  6. Step 6: Final answer
    x = 134,990.03

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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.