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Finding the Fourth Proportional to 96,230.40, 132,798.72 and 53,790.72

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Solution

The fourth proportional to 96,230.40, 132,798.72 and 53,790.72 is: 74,231.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,230.40 : 132,798.72 = 53,790.72 : x
  2. Step 2: Convert to fraction form
    96,230.40/132,798.72 = 53,790.72/x
  3. Step 3: Cross multiply
    96,230.40x = 132,798.72 × 53,790.72
  4. Step 4: Simplify right side
    96,230.40x = 7,143,338,763.88
  5. Step 5: Solve for x
    x = 7,143,338,763.88/96,230.40
  6. Step 6: Final answer
    x = 74,231.62

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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.