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Finding the Fourth Proportional to 89,295.48, 133,939.08 and 39,362.16

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Solution

The fourth proportional to 89,295.48, 133,939.08 and 39,362.16 is: 59,041.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,295.48 : 133,939.08 = 39,362.16 : x
  2. Step 2: Convert to fraction form
    89,295.48/133,939.08 = 39,362.16/x
  3. Step 3: Cross multiply
    89,295.48x = 133,939.08 × 39,362.16
  4. Step 4: Simplify right side
    89,295.48x = 5,272,131,497.21
  5. Step 5: Solve for x
    x = 5,272,131,497.21/89,295.48
  6. Step 6: Final answer
    x = 59,041.42

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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.