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Finding the Fourth Proportional to 115,722.80, 173,843.40 and 110,999.60

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Solution

The fourth proportional to 115,722.80, 173,843.40 and 110,999.60 is: 166,748.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,722.80 : 173,843.40 = 110,999.60 : x
  2. Step 2: Convert to fraction form
    115,722.80/173,843.40 = 110,999.60/x
  3. Step 3: Cross multiply
    115,722.80x = 173,843.40 × 110,999.60
  4. Step 4: Simplify right side
    115,722.80x = 19,296,547,862.64
  5. Step 5: Solve for x
    x = 19,296,547,862.64/115,722.80
  6. Step 6: Final answer
    x = 166,748.02

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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.