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Finding the Fourth Proportional to 173,328, 259,959.12 and 84,492.16

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Solution

The fourth proportional to 173,328, 259,959.12 and 84,492.16 is: 126,722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,328 : 259,959.12 = 84,492.16 : x
  2. Step 2: Convert to fraction form
    173,328/259,959.12 = 84,492.16/x
  3. Step 3: Cross multiply
    173,328x = 259,959.12 × 84,492.16
  4. Step 4: Simplify right side
    173,328x = 21,964,507,560.50
  5. Step 5: Solve for x
    x = 21,964,507,560.50/173,328
  6. Step 6: Final answer
    x = 126,722.21

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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.