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Finding the Fourth Proportional to 222,145.80, 306,569.34 and 126,651.48

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Solution

The fourth proportional to 222,145.80, 306,569.34 and 126,651.48 is: 174,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,145.80 : 306,569.34 = 126,651.48 : x
  2. Step 2: Convert to fraction form
    222,145.80/306,569.34 = 126,651.48/x
  3. Step 3: Cross multiply
    222,145.80x = 306,569.34 × 126,651.48
  4. Step 4: Simplify right side
    222,145.80x = 38,827,460,633.62
  5. Step 5: Solve for x
    x = 38,827,460,633.62/222,145.80
  6. Step 6: Final answer
    x = 174,783.68

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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.