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Finding the Fourth Proportional to 115,932.90, 173,899.35 and 84,828.90

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Solution

The fourth proportional to 115,932.90, 173,899.35 and 84,828.90 is: 127,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,932.90 : 173,899.35 = 84,828.90 : x
  2. Step 2: Convert to fraction form
    115,932.90/173,899.35 = 84,828.90/x
  3. Step 3: Cross multiply
    115,932.90x = 173,899.35 × 84,828.90
  4. Step 4: Simplify right side
    115,932.90x = 14,751,690,571.22
  5. Step 5: Solve for x
    x = 14,751,690,571.22/115,932.90
  6. Step 6: Final answer
    x = 127,243.35

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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.