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Finding the Fourth Proportional to 98,558.50, 136,010.73 and 53,846.50

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Solution

The fourth proportional to 98,558.50, 136,010.73 and 53,846.50 is: 74,308.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,558.50 : 136,010.73 = 53,846.50 : x
  2. Step 2: Convert to fraction form
    98,558.50/136,010.73 = 53,846.50/x
  3. Step 3: Cross multiply
    98,558.50x = 136,010.73 × 53,846.50
  4. Step 4: Simplify right side
    98,558.50x = 7,323,701,772.95
  5. Step 5: Solve for x
    x = 7,323,701,772.95/98,558.50
  6. Step 6: Final answer
    x = 74,308.17

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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.