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Finding the Fourth Proportional to 78,873.86, 117,951.43 and 58,897.38

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Solution

The fourth proportional to 78,873.86, 117,951.43 and 58,897.38 is: 88,077.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,873.86 : 117,951.43 = 58,897.38 : x
  2. Step 2: Convert to fraction form
    78,873.86/117,951.43 = 58,897.38/x
  3. Step 3: Cross multiply
    78,873.86x = 117,951.43 × 58,897.38
  4. Step 4: Simplify right side
    78,873.86x = 6,947,030,194.25
  5. Step 5: Solve for x
    x = 6,947,030,194.25/78,873.86
  6. Step 6: Final answer
    x = 88,077.73

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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.