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Finding the Fourth Proportional to 98,749.98, 148,124.97 and 54,353.88

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Solution

The fourth proportional to 98,749.98, 148,124.97 and 54,353.88 is: 81,530.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,749.98 : 148,124.97 = 54,353.88 : x
  2. Step 2: Convert to fraction form
    98,749.98/148,124.97 = 54,353.88/x
  3. Step 3: Cross multiply
    98,749.98x = 148,124.97 × 54,353.88
  4. Step 4: Simplify right side
    98,749.98x = 8,051,166,844.38
  5. Step 5: Solve for x
    x = 8,051,166,844.38/98,749.98
  6. Step 6: Final answer
    x = 81,530.82

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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.