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Finding the Fourth Proportional to 93,470.95, 140,161.06 and 43,539.31

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Solution

The fourth proportional to 93,470.95, 140,161.06 and 43,539.31 is: 65,287.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,470.95 : 140,161.06 = 43,539.31 : x
  2. Step 2: Convert to fraction form
    93,470.95/140,161.06 = 43,539.31/x
  3. Step 3: Cross multiply
    93,470.95x = 140,161.06 × 43,539.31
  4. Step 4: Simplify right side
    93,470.95x = 6,102,515,841.27
  5. Step 5: Solve for x
    x = 6,102,515,841.27/93,470.95
  6. Step 6: Final answer
    x = 65,287.83

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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.