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Finding the Fourth Proportional to 160,911.60, 241,367.40 and 72,070.80

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Solution

The fourth proportional to 160,911.60, 241,367.40 and 72,070.80 is: 108,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,911.60 : 241,367.40 = 72,070.80 : x
  2. Step 2: Convert to fraction form
    160,911.60/241,367.40 = 72,070.80/x
  3. Step 3: Cross multiply
    160,911.60x = 241,367.40 × 72,070.80
  4. Step 4: Simplify right side
    160,911.60x = 17,395,541,611.92
  5. Step 5: Solve for x
    x = 17,395,541,611.92/160,911.60
  6. Step 6: Final answer
    x = 108,106.20

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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.