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Finding the Fourth Proportional to 93,333.60, 139,891.05 and 69,932.70

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Solution

The fourth proportional to 93,333.60, 139,891.05 and 69,932.70 is: 104,817.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,333.60 : 139,891.05 = 69,932.70 : x
  2. Step 2: Convert to fraction form
    93,333.60/139,891.05 = 69,932.70/x
  3. Step 3: Cross multiply
    93,333.60x = 139,891.05 × 69,932.70
  4. Step 4: Simplify right side
    93,333.60x = 9,782,958,832.34
  5. Step 5: Solve for x
    x = 9,782,958,832.34/93,333.60
  6. Step 6: Final answer
    x = 104,817.12

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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.