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Finding the Fourth Proportional to 93,837.69, 140,403.42 and 65,812.47

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Solution

The fourth proportional to 93,837.69, 140,403.42 and 65,812.47 is: 98,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,837.69 : 140,403.42 = 65,812.47 : x
  2. Step 2: Convert to fraction form
    93,837.69/140,403.42 = 65,812.47/x
  3. Step 3: Cross multiply
    93,837.69x = 140,403.42 × 65,812.47
  4. Step 4: Simplify right side
    93,837.69x = 9,240,295,866.65
  5. Step 5: Solve for x
    x = 9,240,295,866.65/93,837.69
  6. Step 6: Final answer
    x = 98,471.05

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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.