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Finding the Fourth Proportional to 115,461.60, 173,192.40 and 113,906.40

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Solution

The fourth proportional to 115,461.60, 173,192.40 and 113,906.40 is: 170,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,461.60 : 173,192.40 = 113,906.40 : x
  2. Step 2: Convert to fraction form
    115,461.60/173,192.40 = 113,906.40/x
  3. Step 3: Cross multiply
    115,461.60x = 173,192.40 × 113,906.40
  4. Step 4: Simplify right side
    115,461.60x = 19,727,722,791.36
  5. Step 5: Solve for x
    x = 19,727,722,791.36/115,461.60
  6. Step 6: Final answer
    x = 170,859.60

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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.