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Finding the Fourth Proportional to 96,662.40, 133,090.98 and 87,805.04

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Solution

The fourth proportional to 96,662.40, 133,090.98 and 87,805.04 is: 120,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,662.40 : 133,090.98 = 87,805.04 : x
  2. Step 2: Convert to fraction form
    96,662.40/133,090.98 = 87,805.04/x
  3. Step 3: Cross multiply
    96,662.40x = 133,090.98 × 87,805.04
  4. Step 4: Simplify right side
    96,662.40x = 11,686,058,822.54
  5. Step 5: Solve for x
    x = 11,686,058,822.54/96,662.40
  6. Step 6: Final answer
    x = 120,895.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.