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Finding the Fourth Proportional to 96,405.63, 133,005.56 and 62,813.31

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Solution

The fourth proportional to 96,405.63, 133,005.56 and 62,813.31 is: 86,660.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,405.63 : 133,005.56 = 62,813.31 : x
  2. Step 2: Convert to fraction form
    96,405.63/133,005.56 = 62,813.31/x
  3. Step 3: Cross multiply
    96,405.63x = 133,005.56 × 62,813.31
  4. Step 4: Simplify right side
    96,405.63x = 8,354,519,157.94
  5. Step 5: Solve for x
    x = 8,354,519,157.94/96,405.63
  6. Step 6: Final answer
    x = 86,660.08

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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.