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Finding the Fourth Proportional to 163,450.91, 225,549.96 and 91,816.94

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Solution

The fourth proportional to 163,450.91, 225,549.96 and 91,816.94 is: 126,700.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,450.91 : 225,549.96 = 91,816.94 : x
  2. Step 2: Convert to fraction form
    163,450.91/225,549.96 = 91,816.94/x
  3. Step 3: Cross multiply
    163,450.91x = 225,549.96 × 91,816.94
  4. Step 4: Simplify right side
    163,450.91x = 20,709,307,144.32
  5. Step 5: Solve for x
    x = 20,709,307,144.32/163,450.91
  6. Step 6: Final answer
    x = 126,700.47

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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.