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Finding the Fourth Proportional to 218,477.40, 327,716.10 and 148,493.40

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Solution

The fourth proportional to 218,477.40, 327,716.10 and 148,493.40 is: 222,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,477.40 : 327,716.10 = 148,493.40 : x
  2. Step 2: Convert to fraction form
    218,477.40/327,716.10 = 148,493.40/x
  3. Step 3: Cross multiply
    218,477.40x = 327,716.10 × 148,493.40
  4. Step 4: Simplify right side
    218,477.40x = 48,663,677,923.74
  5. Step 5: Solve for x
    x = 48,663,677,923.74/218,477.40
  6. Step 6: Final answer
    x = 222,740.10

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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.