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Finding the Fourth Proportional to 173,395.18, 259,880.10 and 98,578

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Solution

The fourth proportional to 173,395.18, 259,880.10 and 98,578 is: 147,746.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,395.18 : 259,880.10 = 98,578 : x
  2. Step 2: Convert to fraction form
    173,395.18/259,880.10 = 98,578/x
  3. Step 3: Cross multiply
    173,395.18x = 259,880.10 × 98,578
  4. Step 4: Simplify right side
    173,395.18x = 25,618,460,497.80
  5. Step 5: Solve for x
    x = 25,618,460,497.80/173,395.18
  6. Step 6: Final answer
    x = 147,746.09

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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.