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Finding the Fourth Proportional to 96,318.80, 132,926.88 and 53,891

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Solution

The fourth proportional to 96,318.80, 132,926.88 and 53,891 is: 74,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,318.80 : 132,926.88 = 53,891 : x
  2. Step 2: Convert to fraction form
    96,318.80/132,926.88 = 53,891/x
  3. Step 3: Cross multiply
    96,318.80x = 132,926.88 × 53,891
  4. Step 4: Simplify right side
    96,318.80x = 7,163,562,490.08
  5. Step 5: Solve for x
    x = 7,163,562,490.08/96,318.80
  6. Step 6: Final answer
    x = 74,373.46

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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.