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Finding the Fourth Proportional to 218,959.56, 302,164.02 and 118,357.56

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Solution

The fourth proportional to 218,959.56, 302,164.02 and 118,357.56 is: 163,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,959.56 : 302,164.02 = 118,357.56 : x
  2. Step 2: Convert to fraction form
    218,959.56/302,164.02 = 118,357.56/x
  3. Step 3: Cross multiply
    218,959.56x = 302,164.02 × 118,357.56
  4. Step 4: Simplify right side
    218,959.56x = 35,763,396,126.99
  5. Step 5: Solve for x
    x = 35,763,396,126.99/218,959.56
  6. Step 6: Final answer
    x = 163,333.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.