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Finding the Fourth Proportional to 173,312.60, 259,725.90 and 137,834.60

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Solution

The fourth proportional to 173,312.60, 259,725.90 and 137,834.60 is: 206,558.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,312.60 : 259,725.90 = 137,834.60 : x
  2. Step 2: Convert to fraction form
    173,312.60/259,725.90 = 137,834.60/x
  3. Step 3: Cross multiply
    173,312.60x = 259,725.90 × 137,834.60
  4. Step 4: Simplify right side
    173,312.60x = 35,799,215,536.14
  5. Step 5: Solve for x
    x = 35,799,215,536.14/173,312.60
  6. Step 6: Final answer
    x = 206,558.64

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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.