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Finding the Fourth Proportional to 102,913.70, 144,493.90 and 102,913.70

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Solution

The fourth proportional to 102,913.70, 144,493.90 and 102,913.70 is: 144,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,913.70 : 144,493.90 = 102,913.70 : x
  2. Step 2: Convert to fraction form
    102,913.70/144,493.90 = 102,913.70/x
  3. Step 3: Cross multiply
    102,913.70x = 144,493.90 × 102,913.70
  4. Step 4: Simplify right side
    102,913.70x = 14,870,401,876.43
  5. Step 5: Solve for x
    x = 14,870,401,876.43/102,913.70
  6. Step 6: Final answer
    x = 144,493.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.