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Finding the Fourth Proportional to 173,109.40, 259,809.90 and 68,003.80

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Solution

The fourth proportional to 173,109.40, 259,809.90 and 68,003.80 is: 102,062.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,109.40 : 259,809.90 = 68,003.80 : x
  2. Step 2: Convert to fraction form
    173,109.40/259,809.90 = 68,003.80/x
  3. Step 3: Cross multiply
    173,109.40x = 259,809.90 × 68,003.80
  4. Step 4: Simplify right side
    173,109.40x = 17,668,060,477.62
  5. Step 5: Solve for x
    x = 17,668,060,477.62/173,109.40
  6. Step 6: Final answer
    x = 102,062.98

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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.