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Finding the Fourth Proportional to 111,647.63, 167,276.44 and 93,047.20

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Solution

The fourth proportional to 111,647.63, 167,276.44 and 93,047.20 is: 139,408.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,647.63 : 167,276.44 = 93,047.20 : x
  2. Step 2: Convert to fraction form
    111,647.63/167,276.44 = 93,047.20/x
  3. Step 3: Cross multiply
    111,647.63x = 167,276.44 × 93,047.20
  4. Step 4: Simplify right side
    111,647.63x = 15,564,604,066.09
  5. Step 5: Solve for x
    x = 15,564,604,066.09/111,647.63
  6. Step 6: Final answer
    x = 139,408.28

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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.