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Finding the Fourth Proportional to 98,447.72, 147,719.77 and 60,997.82

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Solution

The fourth proportional to 98,447.72, 147,719.77 and 60,997.82 is: 91,526.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,447.72 : 147,719.77 = 60,997.82 : x
  2. Step 2: Convert to fraction form
    98,447.72/147,719.77 = 60,997.82/x
  3. Step 3: Cross multiply
    98,447.72x = 147,719.77 × 60,997.82
  4. Step 4: Simplify right side
    98,447.72x = 9,010,583,049.81
  5. Step 5: Solve for x
    x = 9,010,583,049.81/98,447.72
  6. Step 6: Final answer
    x = 91,526.58

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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.