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Finding the Fourth Proportional to 154,611.40, 231,806.40 and 59,760.40

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Solution

The fourth proportional to 154,611.40, 231,806.40 and 59,760.40 is: 89,597.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,611.40 : 231,806.40 = 59,760.40 : x
  2. Step 2: Convert to fraction form
    154,611.40/231,806.40 = 59,760.40/x
  3. Step 3: Cross multiply
    154,611.40x = 231,806.40 × 59,760.40
  4. Step 4: Simplify right side
    154,611.40x = 13,852,843,186.56
  5. Step 5: Solve for x
    x = 13,852,843,186.56/154,611.40
  6. Step 6: Final answer
    x = 89,597.81

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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.