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Finding the Fourth Proportional to 173,161.70, 259,742.55 and 137,732.30

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Solution

The fourth proportional to 173,161.70, 259,742.55 and 137,732.30 is: 206,598.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,161.70 : 259,742.55 = 137,732.30 : x
  2. Step 2: Convert to fraction form
    173,161.70/259,742.55 = 137,732.30/x
  3. Step 3: Cross multiply
    173,161.70x = 259,742.55 × 137,732.30
  4. Step 4: Simplify right side
    173,161.70x = 35,774,938,819.37
  5. Step 5: Solve for x
    x = 35,774,938,819.37/173,161.70
  6. Step 6: Final answer
    x = 206,598.45

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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.