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Finding the Fourth Proportional to 98,903.31, 136,489.04 and 58,610.54

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Solution

The fourth proportional to 98,903.31, 136,489.04 and 58,610.54 is: 80,884.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,903.31 : 136,489.04 = 58,610.54 : x
  2. Step 2: Convert to fraction form
    98,903.31/136,489.04 = 58,610.54/x
  3. Step 3: Cross multiply
    98,903.31x = 136,489.04 × 58,610.54
  4. Step 4: Simplify right side
    98,903.31x = 7,999,695,362.98
  5. Step 5: Solve for x
    x = 7,999,695,362.98/98,903.31
  6. Step 6: Final answer
    x = 80,884.00

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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.