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Finding the Fourth Proportional to 98,610.53, 136,082.51 and 53,898.53

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Solution

The fourth proportional to 98,610.53, 136,082.51 and 53,898.53 is: 74,379.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,610.53 : 136,082.51 = 53,898.53 : x
  2. Step 2: Convert to fraction form
    98,610.53/136,082.51 = 53,898.53/x
  3. Step 3: Cross multiply
    98,610.53x = 136,082.51 × 53,898.53
  4. Step 4: Simplify right side
    98,610.53x = 7,334,646,978.22
  5. Step 5: Solve for x
    x = 7,334,646,978.22/98,610.53
  6. Step 6: Final answer
    x = 74,379.96

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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.