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Finding the Fourth Proportional to 73,167.06, 100,968.48 and 42,951.90

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Solution

The fourth proportional to 73,167.06, 100,968.48 and 42,951.90 is: 59,272.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,167.06 : 100,968.48 = 42,951.90 : x
  2. Step 2: Convert to fraction form
    73,167.06/100,968.48 = 42,951.90/x
  3. Step 3: Cross multiply
    73,167.06x = 100,968.48 × 42,951.90
  4. Step 4: Simplify right side
    73,167.06x = 4,336,788,056.11
  5. Step 5: Solve for x
    x = 4,336,788,056.11/73,167.06
  6. Step 6: Final answer
    x = 59,272.41

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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.