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Finding the Fourth Proportional to 173,498.40, 259,968.15 and 98,395.20

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Solution

The fourth proportional to 173,498.40, 259,968.15 and 98,395.20 is: 147,434.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,498.40 : 259,968.15 = 98,395.20 : x
  2. Step 2: Convert to fraction form
    173,498.40/259,968.15 = 98,395.20/x
  3. Step 3: Cross multiply
    173,498.40x = 259,968.15 × 98,395.20
  4. Step 4: Simplify right side
    173,498.40x = 25,579,618,112.88
  5. Step 5: Solve for x
    x = 25,579,618,112.88/173,498.40
  6. Step 6: Final answer
    x = 147,434.32

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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.