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Finding the Fourth Proportional to 173,039.70, 259,559.55 and 154,377.30

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Solution

The fourth proportional to 173,039.70, 259,559.55 and 154,377.30 is: 231,565.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,039.70 : 259,559.55 = 154,377.30 : x
  2. Step 2: Convert to fraction form
    173,039.70/259,559.55 = 154,377.30/x
  3. Step 3: Cross multiply
    173,039.70x = 259,559.55 × 154,377.30
  4. Step 4: Simplify right side
    173,039.70x = 40,070,102,518.22
  5. Step 5: Solve for x
    x = 40,070,102,518.22/173,039.70
  6. Step 6: Final answer
    x = 231,565.95

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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.