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Finding the Fourth Proportional to 216,334.40, 324,167.12 and 168,836.88

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Solution

The fourth proportional to 216,334.40, 324,167.12 and 168,836.88 is: 252,994.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,334.40 : 324,167.12 = 168,836.88 : x
  2. Step 2: Convert to fraction form
    216,334.40/324,167.12 = 168,836.88/x
  3. Step 3: Cross multiply
    216,334.40x = 324,167.12 × 168,836.88
  4. Step 4: Simplify right side
    216,334.40x = 54,731,365,139.39
  5. Step 5: Solve for x
    x = 54,731,365,139.39/216,334.40
  6. Step 6: Final answer
    x = 252,994.28

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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.