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Finding the Fourth Proportional to 303,527.90, 418,866.21 and 167,561.90

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Solution

The fourth proportional to 303,527.90, 418,866.21 and 167,561.90 is: 231,234.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,527.90 : 418,866.21 = 167,561.90 : x
  2. Step 2: Convert to fraction form
    303,527.90/418,866.21 = 167,561.90/x
  3. Step 3: Cross multiply
    303,527.90x = 418,866.21 × 167,561.90
  4. Step 4: Simplify right side
    303,527.90x = 70,186,017,993.40
  5. Step 5: Solve for x
    x = 70,186,017,993.40/303,527.90
  6. Step 6: Final answer
    x = 231,234.16

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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.