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Finding the Fourth Proportional to 64,267.80, 96,207.30 and 57,269.40

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Solution

The fourth proportional to 64,267.80, 96,207.30 and 57,269.40 is: 85,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,267.80 : 96,207.30 = 57,269.40 : x
  2. Step 2: Convert to fraction form
    64,267.80/96,207.30 = 57,269.40/x
  3. Step 3: Cross multiply
    64,267.80x = 96,207.30 × 57,269.40
  4. Step 4: Simplify right side
    64,267.80x = 5,509,734,346.62
  5. Step 5: Solve for x
    x = 5,509,734,346.62/64,267.80
  6. Step 6: Final answer
    x = 85,730.87

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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.