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Finding the Fourth Proportional to 173,172.80, 259,794.30 and 98,328.80

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Solution

The fourth proportional to 173,172.80, 259,794.30 and 98,328.80 is: 147,513.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,172.80 : 259,794.30 = 98,328.80 : x
  2. Step 2: Convert to fraction form
    173,172.80/259,794.30 = 98,328.80/x
  3. Step 3: Cross multiply
    173,172.80x = 259,794.30 × 98,328.80
  4. Step 4: Simplify right side
    173,172.80x = 25,545,261,765.84
  5. Step 5: Solve for x
    x = 25,545,261,765.84/173,172.80
  6. Step 6: Final answer
    x = 147,513.13

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1.5x scale

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.