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Finding the Fourth Proportional to 115,910.90, 173,891.55 and 66,014.90

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Solution

The fourth proportional to 115,910.90, 173,891.55 and 66,014.90 is: 99,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,910.90 : 173,891.55 = 66,014.90 : x
  2. Step 2: Convert to fraction form
    115,910.90/173,891.55 = 66,014.90/x
  3. Step 3: Cross multiply
    115,910.90x = 173,891.55 × 66,014.90
  4. Step 4: Simplify right side
    115,910.90x = 11,479,433,284.10
  5. Step 5: Solve for x
    x = 11,479,433,284.10/115,910.90
  6. Step 6: Final answer
    x = 99,036.70

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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.