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Finding the Fourth Proportional to 89,751.88, 123,852.55 and 49,465.52

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Solution

The fourth proportional to 89,751.88, 123,852.55 and 49,465.52 is: 68,259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,751.88 : 123,852.55 = 49,465.52 : x
  2. Step 2: Convert to fraction form
    89,751.88/123,852.55 = 49,465.52/x
  3. Step 3: Cross multiply
    89,751.88x = 123,852.55 × 49,465.52
  4. Step 4: Simplify right side
    89,751.88x = 6,126,430,789.08
  5. Step 5: Solve for x
    x = 6,126,430,789.08/89,751.88
  6. Step 6: Final answer
    x = 68,259.64

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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.