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Finding the Fourth Proportional to 115,900.70, 173,851.05 and 71,383.10

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Solution

The fourth proportional to 115,900.70, 173,851.05 and 71,383.10 is: 107,074.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,900.70 : 173,851.05 = 71,383.10 : x
  2. Step 2: Convert to fraction form
    115,900.70/173,851.05 = 71,383.10/x
  3. Step 3: Cross multiply
    115,900.70x = 173,851.05 × 71,383.10
  4. Step 4: Simplify right side
    115,900.70x = 12,410,026,887.26
  5. Step 5: Solve for x
    x = 12,410,026,887.26/115,900.70
  6. Step 6: Final answer
    x = 107,074.65

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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.