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Finding the Fourth Proportional to 328,203.11, 492,260.93 and 91,525.97

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Solution

The fourth proportional to 328,203.11, 492,260.93 and 91,525.97 is: 137,276.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,203.11 : 492,260.93 = 91,525.97 : x
  2. Step 2: Convert to fraction form
    328,203.11/492,260.93 = 91,525.97/x
  3. Step 3: Cross multiply
    328,203.11x = 492,260.93 × 91,525.97
  4. Step 4: Simplify right side
    328,203.11x = 45,054,660,227.60
  5. Step 5: Solve for x
    x = 45,054,660,227.60/328,203.11
  6. Step 6: Final answer
    x = 137,276.76

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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.