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Finding the Fourth Proportional to 216,697.95, 325,061.18 and 56,777.80

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Solution

The fourth proportional to 216,697.95, 325,061.18 and 56,777.80 is: 85,170.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,697.95 : 325,061.18 = 56,777.80 : x
  2. Step 2: Convert to fraction form
    216,697.95/325,061.18 = 56,777.80/x
  3. Step 3: Cross multiply
    216,697.95x = 325,061.18 × 56,777.80
  4. Step 4: Simplify right side
    216,697.95x = 18,456,257,040.50
  5. Step 5: Solve for x
    x = 18,456,257,040.50/216,697.95
  6. Step 6: Final answer
    x = 85,170.43

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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.