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Finding the Fourth Proportional to 236,991.60, 327,048.36 and 129,561.60

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Solution

The fourth proportional to 236,991.60, 327,048.36 and 129,561.60 is: 178,794.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,991.60 : 327,048.36 = 129,561.60 : x
  2. Step 2: Convert to fraction form
    236,991.60/327,048.36 = 129,561.60/x
  3. Step 3: Cross multiply
    236,991.60x = 327,048.36 × 129,561.60
  4. Step 4: Simplify right side
    236,991.60x = 42,372,908,798.98
  5. Step 5: Solve for x
    x = 42,372,908,798.98/236,991.60
  6. Step 6: Final answer
    x = 178,794.98

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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.