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Finding the Fourth Proportional to 112,522.60, 168,611.10 and 97,661.80

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Solution

The fourth proportional to 112,522.60, 168,611.10 and 97,661.80 is: 146,342.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,522.60 : 168,611.10 = 97,661.80 : x
  2. Step 2: Convert to fraction form
    112,522.60/168,611.10 = 97,661.80/x
  3. Step 3: Cross multiply
    112,522.60x = 168,611.10 × 97,661.80
  4. Step 4: Simplify right side
    112,522.60x = 16,466,863,525.98
  5. Step 5: Solve for x
    x = 16,466,863,525.98/112,522.60
  6. Step 6: Final answer
    x = 146,342.72

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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.