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Finding the Fourth Proportional to 111,487.85, 167,257.31 and 48,318.58

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Solution

The fourth proportional to 111,487.85, 167,257.31 and 48,318.58 is: 72,488.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,487.85 : 167,257.31 = 48,318.58 : x
  2. Step 2: Convert to fraction form
    111,487.85/167,257.31 = 48,318.58/x
  3. Step 3: Cross multiply
    111,487.85x = 167,257.31 × 48,318.58
  4. Step 4: Simplify right side
    111,487.85x = 8,081,635,681.30
  5. Step 5: Solve for x
    x = 8,081,635,681.30/111,487.85
  6. Step 6: Final answer
    x = 72,488.94

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1.5x scale

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.