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Finding the Fourth Proportional to 222,175.68, 306,621.36 and 126,656.16

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Solution

The fourth proportional to 222,175.68, 306,621.36 and 126,656.16 is: 174,796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,175.68 : 306,621.36 = 126,656.16 : x
  2. Step 2: Convert to fraction form
    222,175.68/306,621.36 = 126,656.16/x
  3. Step 3: Cross multiply
    222,175.68x = 306,621.36 × 126,656.16
  4. Step 4: Simplify right side
    222,175.68x = 38,835,484,031.58
  5. Step 5: Solve for x
    x = 38,835,484,031.58/222,175.68
  6. Step 6: Final answer
    x = 174,796.29

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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.