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Finding the Fourth Proportional to 326,823.54, 490,263.54 and 90,166.22

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Solution

The fourth proportional to 326,823.54, 490,263.54 and 90,166.22 is: 135,257.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,823.54 : 490,263.54 = 90,166.22 : x
  2. Step 2: Convert to fraction form
    326,823.54/490,263.54 = 90,166.22/x
  3. Step 3: Cross multiply
    326,823.54x = 490,263.54 × 90,166.22
  4. Step 4: Simplify right side
    326,823.54x = 44,205,210,205.62
  5. Step 5: Solve for x
    x = 44,205,210,205.62/326,823.54
  6. Step 6: Final answer
    x = 135,257.12

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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.