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Finding the Fourth Proportional to 93,428.30, 140,241.09 and 43,556.50

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Solution

The fourth proportional to 93,428.30, 140,241.09 and 43,556.50 is: 65,380.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,428.30 : 140,241.09 = 43,556.50 : x
  2. Step 2: Convert to fraction form
    93,428.30/140,241.09 = 43,556.50/x
  3. Step 3: Cross multiply
    93,428.30x = 140,241.09 × 43,556.50
  4. Step 4: Simplify right side
    93,428.30x = 6,108,411,036.59
  5. Step 5: Solve for x
    x = 6,108,411,036.59/93,428.30
  6. Step 6: Final answer
    x = 65,380.74

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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.