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Finding the Fourth Proportional to 228,614.10, 342,921.15 and 144,633.30

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Solution

The fourth proportional to 228,614.10, 342,921.15 and 144,633.30 is: 216,949.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,614.10 : 342,921.15 = 144,633.30 : x
  2. Step 2: Convert to fraction form
    228,614.10/342,921.15 = 144,633.30/x
  3. Step 3: Cross multiply
    228,614.10x = 342,921.15 × 144,633.30
  4. Step 4: Simplify right side
    228,614.10x = 49,597,817,564.30
  5. Step 5: Solve for x
    x = 49,597,817,564.30/228,614.10
  6. Step 6: Final answer
    x = 216,949.95

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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.