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Finding the Fourth Proportional to 89,798.90, 123,952.51 and 53,511.73

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Solution

The fourth proportional to 89,798.90, 123,952.51 and 53,511.73 is: 73,864.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,798.90 : 123,952.51 = 53,511.73 : x
  2. Step 2: Convert to fraction form
    89,798.90/123,952.51 = 53,511.73/x
  3. Step 3: Cross multiply
    89,798.90x = 123,952.51 × 53,511.73
  4. Step 4: Simplify right side
    89,798.90x = 6,632,912,804.28
  5. Step 5: Solve for x
    x = 6,632,912,804.28/89,798.90
  6. Step 6: Final answer
    x = 73,864.08

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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.