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Finding the Fourth Proportional to 264,815.80, 397,223.70 and 170,337.40

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Solution

The fourth proportional to 264,815.80, 397,223.70 and 170,337.40 is: 255,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,815.80 : 397,223.70 = 170,337.40 : x
  2. Step 2: Convert to fraction form
    264,815.80/397,223.70 = 170,337.40/x
  3. Step 3: Cross multiply
    264,815.80x = 397,223.70 × 170,337.40
  4. Step 4: Simplify right side
    264,815.80x = 67,662,052,276.38
  5. Step 5: Solve for x
    x = 67,662,052,276.38/264,815.80
  6. Step 6: Final answer
    x = 255,506.10

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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.