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Finding the Fourth Proportional to 111,487.12, 167,256.22 and 48,317.82

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Solution

The fourth proportional to 111,487.12, 167,256.22 and 48,317.82 is: 72,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,487.12 : 167,256.22 = 48,317.82 : x
  2. Step 2: Convert to fraction form
    111,487.12/167,256.22 = 48,317.82/x
  3. Step 3: Cross multiply
    111,487.12x = 167,256.22 × 48,317.82
  4. Step 4: Simplify right side
    111,487.12x = 8,081,455,931.84
  5. Step 5: Solve for x
    x = 8,081,455,931.84/111,487.12
  6. Step 6: Final answer
    x = 72,487.80

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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.