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Finding the Fourth Proportional to 228,072.48, 342,114.72 and 108,101.28

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Solution

The fourth proportional to 228,072.48, 342,114.72 and 108,101.28 is: 162,154.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,072.48 : 342,114.72 = 108,101.28 : x
  2. Step 2: Convert to fraction form
    228,072.48/342,114.72 = 108,101.28/x
  3. Step 3: Cross multiply
    228,072.48x = 342,114.72 × 108,101.28
  4. Step 4: Simplify right side
    228,072.48x = 36,983,039,138.84
  5. Step 5: Solve for x
    x = 36,983,039,138.84/228,072.48
  6. Step 6: Final answer
    x = 162,154.76

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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.