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Finding the Fourth Proportional to 111,720.60, 167,486.48 and 48,492.90

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Solution

The fourth proportional to 111,720.60, 167,486.48 and 48,492.90 is: 72,698.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,720.60 : 167,486.48 = 48,492.90 : x
  2. Step 2: Convert to fraction form
    111,720.60/167,486.48 = 48,492.90/x
  3. Step 3: Cross multiply
    111,720.60x = 167,486.48 × 48,492.90
  4. Step 4: Simplify right side
    111,720.60x = 8,121,905,125.99
  5. Step 5: Solve for x
    x = 8,121,905,125.99/111,720.60
  6. Step 6: Final answer
    x = 72,698.37

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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.