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Finding the Fourth Proportional to 316,466.80, 474,700.20 and 192,050.80

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Solution

The fourth proportional to 316,466.80, 474,700.20 and 192,050.80 is: 288,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,466.80 : 474,700.20 = 192,050.80 : x
  2. Step 2: Convert to fraction form
    316,466.80/474,700.20 = 192,050.80/x
  3. Step 3: Cross multiply
    316,466.80x = 474,700.20 × 192,050.80
  4. Step 4: Simplify right side
    316,466.80x = 91,166,553,170.16
  5. Step 5: Solve for x
    x = 91,166,553,170.16/316,466.80
  6. Step 6: Final answer
    x = 288,076.20

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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.