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Finding the Fourth Proportional to 291,566.02, 435,751.57 and 212,846.02

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Solution

The fourth proportional to 291,566.02, 435,751.57 and 212,846.02 is: 318,102.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,566.02 : 435,751.57 = 212,846.02 : x
  2. Step 2: Convert to fraction form
    291,566.02/435,751.57 = 212,846.02/x
  3. Step 3: Cross multiply
    291,566.02x = 435,751.57 × 212,846.02
  4. Step 4: Simplify right side
    291,566.02x = 92,747,986,319.02
  5. Step 5: Solve for x
    x = 92,747,986,319.02/291,566.02
  6. Step 6: Final answer
    x = 318,102.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.