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Finding the Fourth Proportional to 73,508.86, 101,428.90 and 49,344.91

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Solution

The fourth proportional to 73,508.86, 101,428.90 and 49,344.91 is: 68,087.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,508.86 : 101,428.90 = 49,344.91 : x
  2. Step 2: Convert to fraction form
    73,508.86/101,428.90 = 49,344.91/x
  3. Step 3: Cross multiply
    73,508.86x = 101,428.90 × 49,344.91
  4. Step 4: Simplify right side
    73,508.86x = 5,004,999,941.90
  5. Step 5: Solve for x
    x = 5,004,999,941.90/73,508.86
  6. Step 6: Final answer
    x = 68,087.03

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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.