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Finding the Fourth Proportional to 295,647.68, 443,422.92 and 85,229.12

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Solution

The fourth proportional to 295,647.68, 443,422.92 and 85,229.12 is: 127,829.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,647.68 : 443,422.92 = 85,229.12 : x
  2. Step 2: Convert to fraction form
    295,647.68/443,422.92 = 85,229.12/x
  3. Step 3: Cross multiply
    295,647.68x = 443,422.92 × 85,229.12
  4. Step 4: Simplify right side
    295,647.68x = 37,792,545,259.43
  5. Step 5: Solve for x
    x = 37,792,545,259.43/295,647.68
  6. Step 6: Final answer
    x = 127,829.67

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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.