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Finding the Fourth Proportional to 96,441.52, 133,100.70 and 53,991.88

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Solution

The fourth proportional to 96,441.52, 133,100.70 and 53,991.88 is: 74,515.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,441.52 : 133,100.70 = 53,991.88 : x
  2. Step 2: Convert to fraction form
    96,441.52/133,100.70 = 53,991.88/x
  3. Step 3: Cross multiply
    96,441.52x = 133,100.70 × 53,991.88
  4. Step 4: Simplify right side
    96,441.52x = 7,186,357,022.32
  5. Step 5: Solve for x
    x = 7,186,357,022.32/96,441.52
  6. Step 6: Final answer
    x = 74,515.18

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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.