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Finding the Fourth Proportional to 159,309.28, 238,964.48 and 46,990.88

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Solution

The fourth proportional to 159,309.28, 238,964.48 and 46,990.88 is: 70,486.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,309.28 : 238,964.48 = 46,990.88 : x
  2. Step 2: Convert to fraction form
    159,309.28/238,964.48 = 46,990.88/x
  3. Step 3: Cross multiply
    159,309.28x = 238,964.48 × 46,990.88
  4. Step 4: Simplify right side
    159,309.28x = 11,229,151,203.94
  5. Step 5: Solve for x
    x = 11,229,151,203.94/159,309.28
  6. Step 6: Final answer
    x = 70,486.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.