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Finding the Fourth Proportional to 102,941.70, 154,424.99 and 36,368.20

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Solution

The fourth proportional to 102,941.70, 154,424.99 and 36,368.20 is: 54,556.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,941.70 : 154,424.99 = 36,368.20 : x
  2. Step 2: Convert to fraction form
    102,941.70/154,424.99 = 36,368.20/x
  3. Step 3: Cross multiply
    102,941.70x = 154,424.99 × 36,368.20
  4. Step 4: Simplify right side
    102,941.70x = 5,616,158,921.32
  5. Step 5: Solve for x
    x = 5,616,158,921.32/102,941.70
  6. Step 6: Final answer
    x = 54,556.69

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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.