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Finding the Fourth Proportional to 236,388.00, 326,216.23 and 128,960.30

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Solution

The fourth proportional to 236,388.00, 326,216.23 and 128,960.30 is: 177,965.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,388.00 : 326,216.23 = 128,960.30 : x
  2. Step 2: Convert to fraction form
    236,388.00/326,216.23 = 128,960.30/x
  3. Step 3: Cross multiply
    236,388.00x = 326,216.23 × 128,960.30
  4. Step 4: Simplify right side
    236,388.00x = 42,068,943,378.81
  5. Step 5: Solve for x
    x = 42,068,943,378.81/236,388.00
  6. Step 6: Final answer
    x = 177,965.64

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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.