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Finding the Fourth Proportional to 173,220.51, 259,838.05 and 84,548.60

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Solution

The fourth proportional to 173,220.51, 259,838.05 and 84,548.60 is: 126,826.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,220.51 : 259,838.05 = 84,548.60 : x
  2. Step 2: Convert to fraction form
    173,220.51/259,838.05 = 84,548.60/x
  3. Step 3: Cross multiply
    173,220.51x = 259,838.05 × 84,548.60
  4. Step 4: Simplify right side
    173,220.51x = 21,968,941,632.30
  5. Step 5: Solve for x
    x = 21,968,941,632.30/173,220.51
  6. Step 6: Final answer
    x = 126,826.45

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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.