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Finding the Fourth Proportional to 173,154.30, 259,743.60 and 98,310.30

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Solution

The fourth proportional to 173,154.30, 259,743.60 and 98,310.30 is: 147,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,154.30 : 259,743.60 = 98,310.30 : x
  2. Step 2: Convert to fraction form
    173,154.30/259,743.60 = 98,310.30/x
  3. Step 3: Cross multiply
    173,154.30x = 259,743.60 × 98,310.30
  4. Step 4: Simplify right side
    173,154.30x = 25,535,471,239.08
  5. Step 5: Solve for x
    x = 25,535,471,239.08/173,154.30
  6. Step 6: Final answer
    x = 147,472.35

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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.