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Finding the Fourth Proportional to 77,917.68, 116,876.52 and 63,104.40

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Solution

The fourth proportional to 77,917.68, 116,876.52 and 63,104.40 is: 94,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,917.68 : 116,876.52 = 63,104.40 : x
  2. Step 2: Convert to fraction form
    77,917.68/116,876.52 = 63,104.40/x
  3. Step 3: Cross multiply
    77,917.68x = 116,876.52 × 63,104.40
  4. Step 4: Simplify right side
    77,917.68x = 7,375,422,668.69
  5. Step 5: Solve for x
    x = 7,375,422,668.69/77,917.68
  6. Step 6: Final answer
    x = 94,656.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.