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Finding the Fourth Proportional to 216,487.48, 298,716.24 and 120,994.96

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Solution

The fourth proportional to 216,487.48, 298,716.24 and 120,994.96 is: 166,952.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,487.48 : 298,716.24 = 120,994.96 : x
  2. Step 2: Convert to fraction form
    216,487.48/298,716.24 = 120,994.96/x
  3. Step 3: Cross multiply
    216,487.48x = 298,716.24 × 120,994.96
  4. Step 4: Simplify right side
    216,487.48x = 36,143,159,510.15
  5. Step 5: Solve for x
    x = 36,143,159,510.15/216,487.48
  6. Step 6: Final answer
    x = 166,952.65

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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.