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Finding the Fourth Proportional to 173,086.80, 259,630.20 and 73,319.10

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Solution

The fourth proportional to 173,086.80, 259,630.20 and 73,319.10 is: 109,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,086.80 : 259,630.20 = 73,319.10 : x
  2. Step 2: Convert to fraction form
    173,086.80/259,630.20 = 73,319.10/x
  3. Step 3: Cross multiply
    173,086.80x = 259,630.20 × 73,319.10
  4. Step 4: Simplify right side
    173,086.80x = 19,035,852,596.82
  5. Step 5: Solve for x
    x = 19,035,852,596.82/173,086.80
  6. Step 6: Final answer
    x = 109,978.65

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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.