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Finding the Fourth Proportional to 93,902.70, 140,999.85 and 54,536.70

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Solution

The fourth proportional to 93,902.70, 140,999.85 and 54,536.70 is: 81,889.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,902.70 : 140,999.85 = 54,536.70 : x
  2. Step 2: Convert to fraction form
    93,902.70/140,999.85 = 54,536.70/x
  3. Step 3: Cross multiply
    93,902.70x = 140,999.85 × 54,536.70
  4. Step 4: Simplify right side
    93,902.70x = 7,689,666,519.50
  5. Step 5: Solve for x
    x = 7,689,666,519.50/93,902.70
  6. Step 6: Final answer
    x = 81,889.73

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1.5x scale

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.