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Finding the Fourth Proportional to 314,903.70, 471,203.55 and 231,959.70

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Solution

The fourth proportional to 314,903.70, 471,203.55 and 231,959.70 is: 347,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,903.70 : 471,203.55 = 231,959.70 : x
  2. Step 2: Convert to fraction form
    314,903.70/471,203.55 = 231,959.70/x
  3. Step 3: Cross multiply
    314,903.70x = 471,203.55 × 231,959.70
  4. Step 4: Simplify right side
    314,903.70x = 109,300,234,096.94
  5. Step 5: Solve for x
    x = 109,300,234,096.94/314,903.70
  6. Step 6: Final answer
    x = 347,090.98

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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.