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Finding the Fourth Proportional to 145,952.60, 218,912.70 and 119,611.40

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Solution

The fourth proportional to 145,952.60, 218,912.70 and 119,611.40 is: 179,403.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,952.60 : 218,912.70 = 119,611.40 : x
  2. Step 2: Convert to fraction form
    145,952.60/218,912.70 = 119,611.40/x
  3. Step 3: Cross multiply
    145,952.60x = 218,912.70 × 119,611.40
  4. Step 4: Simplify right side
    145,952.60x = 26,184,454,524.78
  5. Step 5: Solve for x
    x = 26,184,454,524.78/145,952.60
  6. Step 6: Final answer
    x = 179,403.82

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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.