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Finding the Fourth Proportional to 98,503.86, 147,749.72 and 39,296.91

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Solution

The fourth proportional to 98,503.86, 147,749.72 and 39,296.91 is: 58,942.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,503.86 : 147,749.72 = 39,296.91 : x
  2. Step 2: Convert to fraction form
    98,503.86/147,749.72 = 39,296.91/x
  3. Step 3: Cross multiply
    98,503.86x = 147,749.72 × 39,296.91
  4. Step 4: Simplify right side
    98,503.86x = 5,806,107,252.88
  5. Step 5: Solve for x
    x = 5,806,107,252.88/98,503.86
  6. Step 6: Final answer
    x = 58,942.94

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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.